{
    "model": {
        "rank": 4549,
        "code": "thing-q53859",
        "model_id": "vr.tr.electron-configuration",
        "name": "electron configuration",
        "purpose": "Enable an agent to identify, validate and use an electron configuration while recording the system, electronic state and approximation that make the assignment meaningful.",
        "family": "Thing Registry",
        "category": "Cross-cutting context",
        "status": "research-draft",
        "kind": "thing",
        "plane": "XCT",
        "domain": "XCT.QLT",
        "industry": "",
        "version": "",
        "url": "/models/thing/q53859/",
        "tier": 2,
        "score": 74,
        "payload": {
            "layer": "wikidata",
            "aliases": [],
            "aliasCount": 0,
            "merged": 0,
            "knownIn": 74,
            "facets": null,
            "markers": [],
            "lexicalClass": "",
            "senseRank": null,
            "alsoRegisteredAs": null,
            "source": {
                "dataset": "wikidata",
                "item": "Q53859",
                "url": "https://www.wikidata.org/wiki/Q53859",
                "license": "CC0 1.0"
            }
        },
        "research": {
            "vercy": "1.0-draft",
            "publication": {
                "status": "research-draft",
                "adjudicationStatus": "unreviewed",
                "publishableCanonical": false,
                "generatedAt": "2026-09-09T20:29:04Z",
                "providers": [
                    "Codex"
                ],
                "breadth": "recalled by Codex without web access - no source was read",
                "missingProviders": [],
                "pass": 2,
                "cost": {
                    "grok": {
                        "seconds": 21.6,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a087db-27f6-7640-b1f2-2f9f67fabbea\n--------\nuser\nDescribe what is already known about one registered thing. Answer as JSON only, no prose around it.\n\nThing: electron configuration\nSense to describe: (none recorded)\nDomain code: XCT.QLT\nAlso known as: (none)\n\n\nContext for this batch of 1001 things:\n# Batch 00",
                        "usd": 0,
                        "recall": true
                    },
                    "codex": {
                        "seconds": 62.9,
                        "error": "Reading additional input from stdin...\nOpenAI Codex v0.153.4\n--------\nworkdir: R:\\02_PROJECTS\\02_Meta_Models_Platforms\\Ver.cy\\current\\thing-registry-backlog\nmodel: gpt-6-astra\nprovider: openai\napproval: never\nsandbox: read-only\nreasoning effort: none\nreasoning summaries: none\nsession id: 01a087db-27ec-7722-b125-660919ded1a2\n--------\nuser\nYou are drafting a Vercy meta-model for one registered thing. Answer as JSON only, no prose around it.\n\nThing: electron configuration\nRegistry id: vr.tr.electron-configuration\nPlane / domain: XCT / XCT.QLT\nRegistry definition: (none recorded)\nNames folded into"
                    }
                }
            },
            "metaModel": {
                "id": "THING-Q53859",
                "registryId": "vr.tr.electron-configuration",
                "name": "electron configuration",
                "version": "0.1.0-research.1",
                "entryKind": "thing",
                "family": "Thing Registry",
                "domain": [
                    "XCT.QLT"
                ],
                "status": "research-draft"
            },
            "canonicalUrl": "https://ver.cy/models/thing/q53859/",
            "model": {
                "registry_id": "vr.tr.electron-configuration",
                "name": "electron configuration",
                "purpose": "Enable an agent to identify, validate and use an electron configuration while recording the system, electronic state and approximation that make the assignment meaningful.",
                "definition": "An electron configuration specifies the occupation of electron shells, subshells, or orbitals in an atom, ion, or molecule within an orbital description, without generally specifying its complete quantum state.",
                "scope_statement": "This model owns electron configuration as an assignment of electrons to specified orbitals or subshells, including notation, occupancy constraints, state context and assignment uncertainty; it does not treat that assignment as a complete electronic wavefunction.",
                "in_scope": [
                    "Atomic and ionic shell, subshell and orbital occupation assignments",
                    "Molecular orbital occupations when the orbital framework is explicitly identified",
                    "Electron count, charge and electronic-state context",
                    "Configuration notation, orbital labels and equivalence between representations",
                    "Ground-state, excited-state and mixed-configuration descriptions",
                    "Evidence, computational assumptions and limits of configuration-based inference"
                ],
                "out_of_scope": [
                    "Complete atomic, ionic or molecular identity models",
                    "Full electronic wavefunctions, electron densities and correlation functions",
                    "The Pauli exclusion principle as an independently modelled physical principle",
                    "Complete spectroscopic term, transition and spectral-line models",
                    "Chemical bonding, reactivity and magnetism beyond what an occupation assignment supports",
                    "Bulk band structures without a defined mapping to orbital occupations"
                ],
                "distinguishing_features": [
                    "It assigns electron populations to labelled orbitals or subshells; an electron count alone does not identify a configuration.",
                    "It distinguishes systems with the same total electron count when their occupations or orbital frameworks differ.",
                    "A subshell configuration can support multiple spectroscopic terms or levels, so a configuration label does not necessarily identify a unique electronic state.",
                    "It records occupations rather than spatial electron density; different wavefunctions can share the same configuration label.",
                    "It distinguishes an integer-occupation configuration from an averaged or correlated description with fractional orbital populations."
                ],
                "characteristics": [
                    {
                        "name": "Represented electronic system",
                        "kind": "relation",
                        "unit_or_values": "Reference to an atom, ion, molecule or explicitly bounded electronic subsystem",
                        "why_it_matters": "An occupation assignment is interpretable only relative to the system it describes."
                    },
                    {
                        "name": "Total electron count",
                        "kind": "measurement",
                        "unit_or_values": "Number of electrons; nonnegative integer for a fixed-electron system",
                        "why_it_matters": "Provides the primary consistency check on the sum of occupations."
                    },
                    {
                        "name": "Net charge",
                        "kind": "measurement",
                        "unit_or_values": "Signed multiples of the elementary charge, e",
                        "why_it_matters": "Connects electron count to the nuclear composition of the represented system."
                    },
                    {
                        "name": "Orbital framework",
                        "kind": "category",
                        "unit_or_values": "Atomic subshells, atomic spatial orbitals, molecular spatial orbitals, spin orbitals or another explicitly defined framework",
                        "why_it_matters": "Determines what labels and occupancy limits mean."
                    },
                    {
                        "name": "Occupation assignment",
                        "kind": "state",
                        "unit_or_values": "Electron count per named orbital or subshell, with omitted occupations explicitly defined",
                        "why_it_matters": "Constitutes the configuration itself."
                    },
                    {
                        "name": "Electronic-state role",
                        "kind": "state",
                        "unit_or_values": "Ground-state assignment, excited-state assignment, configuration component, ensemble description or unresolved",
                        "why_it_matters": "Prevents an allowed occupation pattern from being mistaken for the ground state."
                    },
                    {
                        "name": "Spin resolution",
                        "kind": "category",
                        "unit_or_values": "Unresolved, spin-resolved orbital occupations or linked spin-coupled state",
                        "why_it_matters": "Controls whether pairing and spin-dependent deductions are justified."
                    },
                    {
                        "name": "Configuration weight",
                        "kind": "measurement",
                        "unit_or_values": "Dimensionless weight from 0 to 1 within a specified normalized expansion; otherwise not assigned",
                        "why_it_matters": "Expresses participation in a mixed state without implying a basis-independent probability."
                    },
                    {
                        "name": "Assignment basis",
                        "kind": "category",
                        "unit_or_values": "Reference assignment, spectroscopic interpretation, computation, heuristic prediction or unresolved",
                        "why_it_matters": "Separates the reported configuration from the method and evidence used to assign it."
                    }
                ],
                "affordances": [
                    "Expand abbreviated configurations and compare occupations within compatible orbital frameworks.",
                    "Check electron totals, charge consistency and applicable orbital or subshell capacities.",
                    "Generate candidate occupations for excitation, ionization or electron attachment while flagging unresolved energy ordering.",
                    "Compare configurations to identify occupation changes and isoelectronic relationships.",
                    "Assess whether a single configuration adequately represents a state or requires a mixed description.",
                    "Support qualified deductions about shell closure, valence occupation and orbital pairing."
                ]
            },
            "sources": [],
            "structure": {
                "bundles": [
                    {
                        "id": "system-and-state-context",
                        "name": "System and state context",
                        "description": "Establish which electrons and electronic state the configuration describes.",
                        "rationale": "The same occupation shorthand can be incomplete or misleading without system identity, charge and state context.",
                        "layers": [
                            {
                                "id": "electron-inventory",
                                "name": "Electron inventory",
                                "description": "Connect the represented system to its electron total.",
                                "findings": [
                                    {
                                        "id": "composition-charge-and-electron-count",
                                        "name": "Composition, charge and electron count",
                                        "description": "Record nuclear composition, net charge and whether all electrons or only a specified subset are represented.",
                                        "questions": [
                                            {
                                                "text": "Which atom, ion, molecule or subsystem does this occupation assignment describe?",
                                                "kind": "definition",
                                                "id": "composition-charge-and-electron-count-q01"
                                            },
                                            {
                                                "text": "Does the occupation sum match the electron count implied by composition and charge after accounting for omitted core electrons?",
                                                "kind": "measurement",
                                                "id": "composition-charge-and-electron-count-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "electronic-state-reference",
                                "name": "Electronic-state reference",
                                "description": "Identify the state or family of states to which the assignment applies.",
                                "findings": [
                                    {
                                        "id": "state-specific-assignment",
                                        "name": "State-specific assignment",
                                        "description": "Distinguish a ground-state assignment, an excited configuration and a component shared across possible states.",
                                        "questions": [
                                            {
                                                "text": "Is this configuration assigned to a ground state, an excited state or a component of a state expansion?",
                                                "kind": "definition",
                                                "id": "state-specific-assignment-q01"
                                            },
                                            {
                                                "text": "Which term, level, geometry or environmental conditions are needed to disambiguate the state being described?",
                                                "kind": "boundary",
                                                "id": "state-specific-assignment-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "orbital-language-and-notation",
                        "name": "Orbital language and notation",
                        "description": "Make orbital labels, occupation resolution and shorthand interpretable.",
                        "rationale": "Configurations can be compared reliably only when their notation and orbital conventions are understood.",
                        "layers": [
                            {
                                "id": "orbital-framework",
                                "name": "Orbital framework",
                                "description": "Specify the objects whose populations are counted.",
                                "findings": [
                                    {
                                        "id": "label-meaning-and-resolution",
                                        "name": "Label meaning and resolution",
                                        "description": "Record whether labels denote subshells, spatial orbitals or spin orbitals and identify the framework that defines them.",
                                        "questions": [
                                            {
                                                "text": "Does each occupation refer to an atomic subshell, a spatial orbital or a spin orbital?",
                                                "kind": "definition",
                                                "id": "label-meaning-and-resolution-q01"
                                            },
                                            {
                                                "text": "Which quantum numbers, symmetry labels or computational orbital definitions make each label unambiguous?",
                                                "kind": "provenance",
                                                "id": "label-meaning-and-resolution-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "notation-equivalence",
                                "name": "Notation equivalence",
                                "description": "Resolve shorthand and distinguish cosmetic ordering from physical occupation differences.",
                                "findings": [
                                    {
                                        "id": "core-expansion-and-comparison",
                                        "name": "Core expansion and comparison",
                                        "description": "Expand noble-gas cores or other declared omissions before comparing electron populations.",
                                        "questions": [
                                            {
                                                "text": "Which occupied shells or orbitals are implied by the core abbreviation or omitted-electron convention?",
                                                "kind": "definition",
                                                "id": "core-expansion-and-comparison-q01"
                                            },
                                            {
                                                "text": "After expansion, do two expressions assign identical occupations to equivalent orbitals, or merely contain the same electron total?",
                                                "kind": "boundary",
                                                "id": "core-expansion-and-comparison-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "occupation-validity-and-energy-ordering",
                        "name": "Occupation validity and energy ordering",
                        "description": "Separate admissible occupations from claims about their energetic preference.",
                        "rationale": "Capacity checks establish whether a configuration is permissible, while ground-state assignment requires additional evidence.",
                        "layers": [
                            {
                                "id": "occupation-constraints",
                                "name": "Occupation constraints",
                                "description": "Check population totals and exclusion constraints at the declared resolution.",
                                "findings": [
                                    {
                                        "id": "capacity-and-count-consistency",
                                        "name": "Capacity and count consistency",
                                        "description": "Apply capacities appropriate to spin orbitals, spatial orbitals or atomic subshells without assuming that a subshell label resolves spin coupling.",
                                        "questions": [
                                            {
                                                "text": "Are occupations within the applicable limits of one electron per spin orbital, two per spatial orbital or 2(2l+1) per atomic subshell?",
                                                "kind": "measurement",
                                                "id": "capacity-and-count-consistency-q01"
                                            },
                                            {
                                                "text": "Does the representation contain enough detail to check orbital pairing, or only aggregate subshell capacities?",
                                                "kind": "boundary",
                                                "id": "capacity-and-count-consistency-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "energetic-assignment",
                                "name": "Energetic assignment",
                                "description": "Record why a permitted occupation is assigned to a particular energy-ranked state.",
                                "findings": [
                                    {
                                        "id": "filling-rules-and-system-specific-evidence",
                                        "name": "Filling rules and system-specific evidence",
                                        "description": "Treat simple filling sequences as candidate-generation rules and retain the evidence for the actual assignment.",
                                        "questions": [
                                            {
                                                "text": "Is the proposed ground configuration supported by a reference assignment or calculation, or inferred only from a filling heuristic?",
                                                "kind": "provenance",
                                                "id": "filling-rules-and-system-specific-evidence-q01"
                                            },
                                            {
                                                "text": "For this ion or excited system, what evidence establishes which occupations are energetically preferred?",
                                                "kind": "provenance",
                                                "id": "filling-rules-and-system-specific-evidence-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "assignment-evidence-and-approximation",
                        "name": "Assignment evidence and approximation",
                        "description": "Track the support and representational limits of configuration assignments.",
                        "rationale": "Electron configurations are descriptions within an orbital framework, and a single occupation pattern may not adequately describe a correlated state.",
                        "layers": [
                            {
                                "id": "assignment-provenance",
                                "name": "Assignment provenance",
                                "description": "Connect a configuration claim to its source and method of interpretation.",
                                "findings": [
                                    {
                                        "id": "reported-versus-inferred-configuration",
                                        "name": "Reported versus inferred configuration",
                                        "description": "Distinguish configurations explicitly assigned by a source from those reconstructed by an agent.",
                                        "questions": [
                                            {
                                                "text": "Which source or computational result explicitly supports this configuration for this system and state?",
                                                "kind": "provenance",
                                                "id": "reported-versus-inferred-configuration-q01"
                                            },
                                            {
                                                "text": "Which parts of the assignment were reported, and which were inferred from spectra, electron counts or orbital energies?",
                                                "kind": "provenance",
                                                "id": "reported-versus-inferred-configuration-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "configuration-mixing",
                                "name": "Configuration mixing",
                                "description": "Represent departures from an adequate single-configuration description.",
                                "findings": [
                                    {
                                        "id": "single-mixed-and-fractional-descriptions",
                                        "name": "Single, mixed and fractional descriptions",
                                        "description": "Distinguish an integer-occupation component from a multiconfiguration expansion or fractional occupation summary.",
                                        "questions": [
                                            {
                                                "text": "Does the label denote one configuration, the leading component of a mixed state or an averaged occupation description?",
                                                "kind": "definition",
                                                "id": "single-mixed-and-fractional-descriptions-q01"
                                            },
                                            {
                                                "text": "If weights or fractional occupations are supplied, which orbital basis, method and normalization define them?",
                                                "kind": "measurement",
                                                "id": "single-mixed-and-fractional-descriptions-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "configuration-changes-and-supported-inference",
                        "name": "Configuration changes and supported inference",
                        "description": "Use occupation differences to propose changes and constrain deductions.",
                        "rationale": "An agent must distinguish occupation bookkeeping from predictions requiring energies, spin coupling or transition information.",
                        "layers": [
                            {
                                "id": "occupation-changing-operations",
                                "name": "Occupation-changing operations",
                                "description": "Describe candidate changes caused by excitation, electron removal or electron addition.",
                                "findings": [
                                    {
                                        "id": "excitation-ionization-and-attachment",
                                        "name": "Excitation, ionization and attachment",
                                        "description": "Record initial and final occupations while allowing the orbital framework to change when the electronic system relaxes.",
                                        "questions": [
                                            {
                                                "text": "Which occupations and total electron count change under the proposed excitation, ionization or attachment?",
                                                "kind": "action",
                                                "id": "excitation-ionization-and-attachment-q01"
                                            },
                                            {
                                                "text": "Does the resulting configuration require a new orbital assignment or state calculation before it can be accepted?",
                                                "kind": "action",
                                                "id": "excitation-ionization-and-attachment-q02"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "inference-boundaries",
                                "name": "Inference boundaries",
                                "description": "Identify conclusions supported by occupations and the additional information required for stronger claims.",
                                "findings": [
                                    {
                                        "id": "shell-closure-pairing-and-transition-limits",
                                        "name": "Shell closure, pairing and transition limits",
                                        "description": "Support explicit shell-closure and resolved-pairing checks while bounding claims about magnetism, reactivity and allowed transitions.",
                                        "questions": [
                                            {
                                                "text": "Which conclusions about closed subshells, valence occupation or unpaired electrons follow at the recorded orbital and spin resolution?",
                                                "kind": "boundary",
                                                "id": "shell-closure-pairing-and-transition-limits-q01"
                                            },
                                            {
                                                "text": "What additional state, energy or transition information is required before predicting magnetic behavior, reactivity or spectroscopic accessibility?",
                                                "kind": "action",
                                                "id": "shell-closure-pairing-and-transition-limits-q02"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "evidence-and-external-alignment",
                        "name": "Evidence and external alignment",
                        "description": "What the world already says about this thing, gathered so the model can be checked against it.",
                        "rationale": "A model that cannot be lined up against existing standards, identifiers and practice cannot be adopted by anyone who already uses them.",
                        "layers": [
                            {
                                "id": "reported-evidence",
                                "name": "Reported evidence",
                                "description": "Findings from the breadth pass, kept separate from the structural claims.",
                                "findings": [
                                    {
                                        "id": "evidence-confidence-notes",
                                        "name": "Check these first",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "The sense is inferred to be the standard atomic and molecular electronic-structure concept because no registry definition was supplied.",
                                            "Specific ground-state assignments, especially for heavy elements and ions, require checking spectroscopic reference data.",
                                            "Integer occupations describe individual configurations; fractional occupations may occur in ensemble or correlated descriptions and depend on the orbital representation."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-confidence-notes-q01",
                                                "text": "Which of these check these first hold for the sense of electron configuration this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-kinds",
                                        "name": "Kinds and varieties",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Ground-state configurations",
                                            "Excited-state configurations",
                                            "Atomic configurations",
                                            "Ionic configurations",
                                            "Molecular orbital configurations"
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-kinds-q01",
                                                "text": "Which of these kinds and varieties hold for the sense of electron configuration this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-identifiers",
                                        "name": "Identifiers and schemes",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "scheme": "Atomic subshell occupation notation",
                                                "value_or_pattern": "1s² 2s² 2p⁶",
                                                "note": "The number denotes the principal quantum number, the letter denotes the subshell, and the superscript denotes its electron population; this example is the ground-state configuration of neutral neon."
                                            },
                                            {
                                                "scheme": "Noble-gas core shorthand",
                                                "value_or_pattern": "[Ne] 3s¹",
                                                "note": "The bracketed element represents a closed-shell core; this example is the ground-state configuration of neutral sodium."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-identifiers-q01",
                                                "text": "Which of these identifiers and schemes hold for the sense of electron configuration this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-real-world-use",
                                        "name": "Real-world use",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Organizing periodic trends and interpreting valence behavior.",
                                            "Interpreting atomic and ionic spectra alongside term symbols and transition rules.",
                                            "Explaining bonding through molecular orbital occupations.",
                                            "Estimating unpaired-electron populations and their contribution to magnetism.",
                                            "Selecting reference configurations for electronic-structure calculations."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-real-world-use-q01",
                                                "text": "Which of these real-world use hold for the sense of electron configuration this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-measurements",
                                        "name": "Typical measurements",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "quantity": "Occupation of an individual spatial orbital",
                                                "typical_range": "0, 1, or 2 in a definite-occupation configuration",
                                                "unit": "electrons"
                                            },
                                            {
                                                "quantity": "Subshell electron population",
                                                "typical_range": "0-2 for s, 0-6 for p, 0-10 for d, and 0-14 for f",
                                                "unit": "electrons"
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-measurements-q01",
                                                "text": "Which of these typical measurements hold for the sense of electron configuration this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-failure-modes-and-hazards",
                                        "name": "Failure modes and hazards",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            "Treating the Aufbau filling order as exceptionless; closely competing subshell energies produce ground-state exceptions.",
                                            "Assuming ionization simply reverses a memorized filling sequence; transition-metal cations commonly lose outer ns electrons before (n−1)d electrons.",
                                            "Confusing a configuration with a complete electronic state; one configuration can support multiple terms and energy levels.",
                                            "Assigning a unique exact configuration to a correlated state that requires a mixture of configurations.",
                                            "Inferring chemical behavior or magnetism from isolated-atom occupations without accounting for bonding, coordination, and electronic interactions."
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-failure-modes-and-hazards-q01",
                                                "text": "Which of these failure modes and hazards hold for the sense of electron configuration this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    },
                                    {
                                        "id": "evidence-neighbours",
                                        "name": "Neighbouring kinds and how to tell them apart",
                                        "description": "Recalled without web access and unsourced; every item is a lead to verify.",
                                        "evidence": [
                                            {
                                                "name": "Atomic orbital",
                                                "difference": "An orbital is a one-electron spatial state; a configuration specifies electron occupations across orbitals or subshells."
                                            },
                                            {
                                                "name": "Electronic state",
                                                "difference": "An electronic state contains quantum-state information beyond occupation counts; several states may share a configuration."
                                            },
                                            {
                                                "name": "Term symbol",
                                                "difference": "A term symbol labels angular-momentum properties of an electronic term or level rather than subshell populations."
                                            },
                                            {
                                                "name": "Electron density",
                                                "difference": "Electron density describes spatial electron distribution rather than discrete orbital occupations."
                                            },
                                            {
                                                "name": "Oxidation state",
                                                "difference": "Oxidation state is a formal electron-assignment quantity used in chemical bookkeeping, not an orbital occupation specification."
                                            },
                                            {
                                                "name": "Pauli exclusion principle",
                                                "difference": "The principle constrains permissible electron states and occupations; a configuration records a particular occupation pattern."
                                            }
                                        ],
                                        "questions": [
                                            {
                                                "id": "evidence-neighbours-q01",
                                                "text": "Which of these neighbouring kinds and how to tell them apart hold for the sense of electron configuration this model covers, and on what evidence?",
                                                "kind": "provenance"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "openQuestions": [
                "Should the registry entry cover molecular orbital configurations directly, or own a shared concept with links to more specialized atomic and molecular models?",
                "Which authoritative reference sources and assignment conventions should govern disputed or revised ground configurations?",
                "What application-specific criterion should determine when a leading configuration is adequate and when configuration mixing must be recorded?",
                "How should relativistic orbital labels and coupling conventions map onto the nonrelativistic subshell notation used for comparison?",
                "Should fractional occupations be represented as a related electronic-state summary or admitted as a qualified sense of electron configuration?"
            ],
            "statistics": {
                "bundles": 6,
                "layers": 11,
                "findings": 17,
                "questions": 27
            }
        },
        "draft": {
            "generator": "vr.draft.v3",
            "status": "draft-generated",
            "researched": false,
            "archetype": "abstract concept",
            "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.",
            "facetsInferred": true,
            "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.",
            "purpose": "Give an agent a durable, checkable way to recognise a electron configuration, record what state it is in, and decide what may be done with it.",
            "whatItIs": "Enable an agent to identify, validate and use an electron configuration while recording the system, electronic state and approximation that make the assignment meaningful.",
            "characteristics": {
                "substance": "abstract",
                "origin": "conceptual",
                "agency": "inert"
            },
            "whatYouCanDoWithIt": [
                "observed and measured"
            ],
            "distinguishingFeatures": [
                "Described in 74 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is."
            ],
            "openQuestionsForResearch": [
                "Which of the bundles below does a real task actually need, and which are ceremony?",
                "What does this thing have that the facets do not capture at all?",
                "Which neighbouring kind is most often confused with a electron configuration, and on what evidence are they told apart?"
            ],
            "whatItIsMadeOf": "an abstraction with no physical instance",
            "physicalCharacter": [
                "Does nothing on its own; everything it does, something else did to it.",
                "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing."
            ],
            "whatCanBeDoneWithIt": [
                "observe it, measure it, record its state"
            ],
            "howItIsRecognised": [
                "Nothing to see. What is recognised is an instance of it, and which instances count is exactly what is argued about."
            ],
            "relatedModels": [],
            "standing": "Described in 74 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is.",
            "structure": {
                "bundles": [
                    {
                        "id": "identity-and-classification",
                        "name": "Identity, naming and classification",
                        "description": "How an agent tells one electron configuration from another, and a electron configuration from things that resemble it.",
                        "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.",
                        "layers": [
                            {
                                "id": "naming-and-identifiers",
                                "name": "Names and identifiers",
                                "description": "The names this thing goes by and the identifiers that survive translation and time.",
                                "findings": [
                                    {
                                        "id": "preferred-name-and-aliases",
                                        "name": "Preferred name, aliases and local names",
                                        "description": "Which name to use, which names mean the same thing, and which merely sound similar.",
                                        "questions": [
                                            {
                                                "id": "preferred-name-and-aliases-q01",
                                                "text": "What identifies and describes the name of a electron configuration, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "preferred-name-and-aliases-q02",
                                                "text": "Who or what asserted this about the name of a electron configuration, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "preferred-name-and-aliases-q03",
                                                "text": "What may an agent decide or do once the name of a electron configuration is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        "id": "stable-identifiers",
                                        "name": "Stable identifiers and external keys",
                                        "description": "Identifiers that keep pointing at this kind of thing across systems and languages.",
                                        "questions": [
                                            {
                                                "id": "stable-identifiers-q01",
                                                "text": "What identifies and describes an identifier for a electron configuration, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "stable-identifiers-q02",
                                                "text": "Who or what asserted this about an identifier for a electron configuration, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "stable-identifiers-q03",
                                                "text": "What may an agent decide or do once an identifier for a electron configuration is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "classification-and-granularity",
                                "name": "Classification and granularity",
                                "description": "Where a electron configuration sits among kinds, and how finely a task needs to cut it.",
                                "findings": [
                                    {
                                        "id": "kind-and-parents",
                                        "name": "Kind, parents and neighbouring kinds",
                                        "description": "The classes this thing belongs to and the ones it is next to.",
                                        "questions": [
                                            {
                                                "id": "kind-and-parents-q01",
                                                "text": "What identifies and describes the kind of a electron configuration, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "kind-and-parents-q02",
                                                "text": "Who or what asserted this about the kind of a electron configuration, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "kind-and-parents-q03",
                                                "text": "What may an agent decide or do once the kind of a electron configuration is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    },
                                    {
                                        "id": "distinguishing-features",
                                        "name": "Distinguishing features",
                                        "description": "What separates a electron configuration from the things most often confused with it.",
                                        "questions": [
                                            {
                                                "id": "distinguishing-features-q01",
                                                "text": "What identifies and describes what distinguishes a electron configuration, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "distinguishing-features-q02",
                                                "text": "Who or what asserted this about what distinguishes a electron configuration, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "distinguishing-features-q03",
                                                "text": "What may an agent decide or do once what distinguishes a electron configuration is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "state-and-lifecycle",
                        "name": "State and lifecycle",
                        "description": "The states a electron configuration passes through and the events that move it between them.",
                        "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.",
                        "layers": [
                            {
                                "id": "lifecycle-stages",
                                "name": "Lifecycle stages",
                                "description": "From coming into existence to ceasing to be one of these.",
                                "findings": [
                                    {
                                        "id": "stages-and-transitions",
                                        "name": "Stages and transitions",
                                        "description": "The stages worth naming and what moves a electron configuration between them.",
                                        "questions": [
                                            {
                                                "id": "stages-and-transitions-q01",
                                                "text": "What identifies and describes the lifecycle of a electron configuration, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "stages-and-transitions-q02",
                                                "text": "Who or what asserted this about the lifecycle of a electron configuration, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "stages-and-transitions-q03",
                                                "text": "What may an agent decide or do once the lifecycle of a electron configuration is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "observations-and-status",
                                "name": "Observations and current status",
                                "description": "What is observed about a electron configuration, how often and by whom.",
                                "findings": [
                                    {
                                        "id": "observation-record",
                                        "name": "Observation record",
                                        "description": "How an observation of a electron configuration is recorded so that it can be superseded rather than overwritten.",
                                        "questions": [
                                            {
                                                "id": "observation-record-q01",
                                                "text": "What identifies and describes an observation of a electron configuration, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "observation-record-q02",
                                                "text": "Who or what asserted this about an observation of a electron configuration, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "observation-record-q03",
                                                "text": "What may an agent decide or do once an observation of a electron configuration is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "definitions-in-contest",
                        "name": "Definitions and who holds them",
                        "description": "What electron configuration is taken to mean, and by whom.",
                        "rationale": "When a field disagrees about a concept, the disagreement is the content. A model that picks one definition silently destroys the information.",
                        "layers": [
                            {
                                "id": "competing-definitions",
                                "name": "Competing definitions",
                                "description": "The main readings and the traditions behind them.",
                                "findings": [
                                    {
                                        "id": "definition-map",
                                        "name": "Definitions and their holders",
                                        "description": "Each definition with the school or body that holds it.",
                                        "questions": [
                                            {
                                                "id": "definition-map-q01",
                                                "text": "Which definitions of electron configuration are in use, and which tradition or body holds each?",
                                                "kind": "definition"
                                            },
                                            {
                                                "id": "definition-map-q02",
                                                "text": "What turns on the difference between them in practice?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "operationalisation",
                                "name": "Operationalisation",
                                "description": "How it is measured or applied when it has to be.",
                                "findings": [
                                    {
                                        "id": "operational-record",
                                        "name": "Measures and proxies",
                                        "description": "Instruments and indicators used to stand in for it.",
                                        "questions": [
                                            {
                                                "id": "operational-record-q01",
                                                "text": "How is electron configuration operationalised or measured in practice, and by what instrument?",
                                                "kind": "measurement"
                                            },
                                            {
                                                "id": "operational-record-q02",
                                                "text": "What does that operationalisation leave out, and when does that matter?",
                                                "kind": "boundary"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "instances-and-use",
                        "name": "Instances, use and consequence",
                        "description": "What counts as an instance of electron configuration and what follows from calling something that.",
                        "rationale": "Applying a concept is an act with consequences, so a model must say what the label licenses and what it does not.",
                        "layers": [
                            {
                                "id": "instances",
                                "name": "What counts as an instance",
                                "description": "Clear cases, borderline cases and non-cases.",
                                "findings": [
                                    {
                                        "id": "instance-tests",
                                        "name": "Tests for an instance",
                                        "description": "What would settle whether something falls under it.",
                                        "questions": [
                                            {
                                                "id": "instance-tests-q01",
                                                "text": "What would settle whether something is an instance of electron configuration?",
                                                "kind": "boundary"
                                            },
                                            {
                                                "id": "instance-tests-q02",
                                                "text": "Which borderline cases are argued about, and on what grounds?",
                                                "kind": "definition"
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "consequence",
                                "name": "Consequence of application",
                                "description": "Rights, duties or decisions that follow from the label.",
                                "findings": [
                                    {
                                        "id": "consequence-record",
                                        "name": "What the label licenses",
                                        "description": "What an agent may do once something is classified this way.",
                                        "questions": [
                                            {
                                                "id": "consequence-record-q01",
                                                "text": "What follows practically once something is treated as electron configuration?",
                                                "kind": "action"
                                            },
                                            {
                                                "id": "consequence-record-q02",
                                                "text": "What must an agent not infer from the label alone?",
                                                "kind": "action"
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    },
                    {
                        "id": "provenance-and-evidence",
                        "name": "Provenance, evidence and time",
                        "description": "Where every claim about a electron configuration came from and when it held.",
                        "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.",
                        "layers": [
                            {
                                "id": "source-and-authority",
                                "name": "Source and authority",
                                "description": "Who said it, on what evidence, and how strongly.",
                                "findings": [
                                    {
                                        "id": "claim-provenance",
                                        "name": "Claim provenance and confidence",
                                        "description": "The authority behind each claim about a electron configuration and how confident it is.",
                                        "questions": [
                                            {
                                                "id": "claim-provenance-q01",
                                                "text": "What identifies and describes a claim about a electron configuration, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "claim-provenance-q02",
                                                "text": "Who or what asserted this about a claim about a electron configuration, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "claim-provenance-q03",
                                                "text": "What may an agent decide or do once a claim about a electron configuration is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            },
                            {
                                "id": "time-and-versions",
                                "name": "Time, versions and supersession",
                                "description": "When a claim was true, when it was learnt, and what replaced it.",
                                "findings": [
                                    {
                                        "id": "validity-and-supersession",
                                        "name": "Validity period and supersession",
                                        "description": "How an old claim about a electron configuration is retired without being erased.",
                                        "questions": [
                                            {
                                                "id": "validity-and-supersession-q01",
                                                "text": "What identifies and describes the validity of a claim about a electron configuration, and in what units or vocabulary?",
                                                "kind": "definition",
                                                "answer_data": [
                                                    "identifiers",
                                                    "types and classes",
                                                    "values with units",
                                                    "explicit unknowns"
                                                ]
                                            },
                                            {
                                                "id": "validity-and-supersession-q02",
                                                "text": "Who or what asserted this about the validity of a claim about a electron configuration, by which method, and when was it true?",
                                                "kind": "provenance",
                                                "answer_data": [
                                                    "authority",
                                                    "method",
                                                    "evidence",
                                                    "event time",
                                                    "knowledge time"
                                                ]
                                            },
                                            {
                                                "id": "validity-and-supersession-q03",
                                                "text": "What may an agent decide or do once the validity of a claim about a electron configuration is known, and what must it refuse?",
                                                "kind": "action",
                                                "answer_data": [
                                                    "permitted actions",
                                                    "preconditions",
                                                    "refusals",
                                                    "escalation"
                                                ]
                                            }
                                        ]
                                    }
                                ]
                            }
                        ]
                    }
                ]
            },
            "statistics": {
                "bundles": 5,
                "layers": 10,
                "findings": 12,
                "questions": 32
            }
        }
    }
}