{ "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-12T23:41:50Z", "providers": [ "Claude" ], "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify", "pass": 2, "wave": 3, "engine": "claude", "enrichment": { "pass": 3, "engine": "claude", "producedAt": "2026-10-06T10:00:00Z", "ingestedAt": "2026-10-06T07:00:40+00:00", "fields": [ "agent_conduct", "ethics", "owners" ] }, "revisions": [ { "at": "2026-10-06T22:28:32+00:00", "engine": "codex", "fields": [ "definition" ], "answering_review": "b68c4dc7688930fed7e1c8dc31bc114a02dd20a862a64e0476b1351def768f93" } ], "gate": { "passed": true, "version": "1.0", "at": "2026-10-07T10:10:25+00:00", "evidence": [ "completeness 1.00", "sense: Wikidata description", "2 live sources", "review by codex: pass" ] } }, "metaModel": { "id": "THING-Q1053", "registryId": "vr.tr.molybdenum", "name": "molybdenum", "version": "0.2.0-wave.3", "entryKind": "thing", "family": "Thing Registry", "domain": [ "PHY.MAT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q1053/", "model": { "registry_id": "vr.tr.molybdenum", "name": "molybdenum", "purpose": "Let an agent identify molybdenum and its properties, relay production, uses, isotopes and biological roles from reference sources, explain the medical importance of molybdenum-99, and distinguish it from similar metals.", "definition": "A chemical element with symbol Mo and atomic number 42, a hard, silvery transition metal with one of the highest melting points, not found free in nature but obtained mainly from molybdenite; molybdenum is used chiefly in steel alloys for strength and corrosion resistance, in catalysts, lubricants as molybdenum disulfide and electrodes, is an essential trace element in enzymes, and has seven naturally occurring isotopes. Molybdenum-99 is a separately produced radioactive isotope used as the parent of technetium-99m in medical imaging, not one of those seven naturally occurring isotopes.", "what_it_is_for": "Steel alloying, catalysts, lubricants and medical isotope production.", "affordances": [ "relay properties and isotopes", "explain production and uses", "explain medical isotope role", "distinguish from similar metals" ], "distinguishing_features": [ "Very high melting point", "Steel alloying element", "Essential in enzymes", "Mo-99 for medical imaging" ], "appearance": "A hard, grey metal with a high melting point.", "visual_identification": [ "Element 42, symbol Mo", "Refractory transition metal", "Tungsten and chromium are related group 6 metals" ], "physical_properties": [ { "quantity": "atomic number", "typical_range": "42", "unit": "Z", "note": "" }, { "quantity": "standard atomic weight", "typical_range": "95.95", "unit": "u", "note": "" }, { "quantity": "melting point", "typical_range": "2623", "unit": "degrees C", "note": "" }, { "quantity": "density", "typical_range": "10.28", "unit": "g/cm3", "note": "" } ], "families_and_kinds": [ "molybdenum metal and alloys", "molybdenum compounds such as disulfide and trioxide", "isotopes from molybdenum-83 to molybdenum-117, with seven natural and Mo-99 medically important", "molybdenum in enzymes such as nitrogenase and xanthine oxidase" ], "related_models": [ { "relation": "is a kind of", "target": "heavy metal", "why": "in registry terms" }, { "relation": "is a kind of", "target": "transition metal", "why": "group 6" }, { "relation": "is used in", "target": "steel", "why": "as an alloying element" }, { "relation": "is the parent of", "target": "technetium-99m", "why": "through molybdenum-99" } ], "identifiers": [ { "scheme": "symbol", "value_or_pattern": "Mo", "note": "" }, { "scheme": "CAS", "value_or_pattern": "7439-98-7", "note": "" } ], "standards_and_regulation": [ "Occupational exposure limits", "Dietary reference intakes for molybdenum", "Regulation of medical isotope production and supply", "Chemical safety data sheets" ], "failure_modes_and_hazards": [ "Medical isotope supply shortages", "Toxicity of some compounds", "Supply concentration", "Confusion with similar metals" ], "in_scope": [], "out_of_scope": [], "characteristics": [], "agent_conduct": { "may": [ "Explain molybdenum's properties and its uses in steel alloys, catalysts and lubricants.", "Describe molybdenum-99 and its role in producing medical imaging isotopes.", "Report on supply with sources and dates." ], "must_not": [ "Advise handling radioactive molybdenum isotopes outside licensed use.", "Present molybdenum compounds as safe supplements beyond evidence.", "Confuse molybdenum with similar metals in specifications.", "Advise disposing of molybdenum catalysts as ordinary waste." ], "requires_human": [ "Decisions on allocating scarce medical isotopes." ] }, "ethics": { "considerations": [ "Shortages of medical isotopes delay diagnosis for patients.", "Mining and refining affect workers and nearby communities." ], "affected_parties": [ "Patients needing imaging", "Workers", "Communities near mines" ] }, "owners": { "steward": "Nobody owns the element; producers and licensed isotope holders answer for their stock.", "master_systems": [] } }, "sources": [ { "id": "wikidata", "title": "Wikidata item Q1053: molybdenum", "url": "https://www.wikidata.org/wiki/Q1053", "url_status": "live", "what_it_supports": "identity and sense of the item", "checked_by": "wikidata-api" }, { "id": "wikipedia-en", "title": "Wikipedia: Molybdenum", "url": "https://en.wikipedia.org/wiki/Molybdenum", "url_status": "live", "what_it_supports": "general description of the item", "checked_by": "wikidata-api sitelink" } ], "structure": { "bundles": [ { "id": "identify", "name": "Identify", "description": "What molybdenum is.", "rationale": "Identity.", "layers": [ { "id": "properties", "name": "Properties", "description": "Properties.", "findings": [ { "id": "properties-finding", "name": "Properties", "description": "Properties.", "questions": [ { "text": "What are the physical and chemical properties of molybdenum?", "kind": "definition" }, { "text": "Is the question about molybdenum or a related metal such as tungsten?", "kind": "boundary" } ] } ] }, { "id": "isotopes", "name": "Isotopes", "description": "Isotopes.", "findings": [ { "id": "isotopes-finding", "name": "Isotopes", "description": "Isotopes.", "questions": [ { "text": "Which isotopes exist, and why is molybdenum-99 important?", "kind": "definition" }, { "text": "Which entry fits the specific isotope?", "kind": "action" } ] } ] } ] }, { "id": "industry", "name": "Industry", "description": "Production and uses.", "rationale": "Supply.", "layers": [ { "id": "production", "name": "Production", "description": "Mining and refining.", "findings": [ { "id": "production-finding", "name": "Production", "description": "Production.", "questions": [ { "text": "How is molybdenum mined and refined, and who produces it, with sources?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] }, { "id": "uses", "name": "Uses", "description": "Uses.", "findings": [ { "id": "uses-finding", "name": "Uses", "description": "Uses.", "questions": [ { "text": "How is molybdenum used in steel, catalysts, lubricants and electronics?", "kind": "provenance" }, { "text": "Which entry fits a specific alloy or product?", "kind": "action" } ] } ] } ] }, { "id": "science", "name": "Science", "description": "Biology and medicine.", "rationale": "Science.", "layers": [ { "id": "biology", "name": "Biology", "description": "Biological role.", "findings": [ { "id": "biology-finding", "name": "Biology", "description": "Biology.", "questions": [ { "text": "What role does molybdenum play in enzymes and nutrition?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "medical", "name": "Medical", "description": "Medical isotopes.", "findings": [ { "id": "medical-finding", "name": "Medical", "description": "Medical.", "questions": [ { "text": "How is molybdenum-99 produced and used to supply technetium-99m, and why have shortages occurred?", "kind": "provenance" }, { "text": "Which entry fits technetium-99m?", "kind": "action" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "History and safety.", "rationale": "Context.", "layers": [ { "id": "history", "name": "History", "description": "History.", "findings": [ { "id": "history-finding", "name": "History", "description": "History.", "questions": [ { "text": "How was molybdenum identified by Scheele and Hjelm, and how did its use in steel develop?", "kind": "provenance" }, { "text": "Which entry fits the history of chemistry?", "kind": "action" } ] } ] }, { "id": "safety", "name": "Safety", "description": "Safety.", "findings": [ { "id": "safety-finding", "name": "Safety", "description": "Safety.", "questions": [ { "text": "What hazards do molybdenum compounds present, and what limits apply?", "kind": "provenance" }, { "text": "Is the user asking about a personal exposure, which needs a clinician or poison centre?", "kind": "boundary" } ] } ] } ] } ] }, "openQuestions": [ "Should molybdenum-99 be a separate entry?", "How should reference data be linked?", "The registry entry has merged aliases naming isotopes; should they be split off?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }