{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.fermium","code":"thing-q1896","url":"https://ver.cy/models/thing/q1896/","name":"fermium","alternateNames":["fermium-241","fermium-242","fermium-243","fermium-244","fermium-245","fermium-246","fermium-247","fermium-248","fermium-249","fermium-250","fermium-251","fermium-252"],"kind":"thing","status":"published","version":"0.2.0-wave.4","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.MAT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"A synthetic radioactive actinide element with atomic number 100, symbol Fm, discovered in 1952 in the debris of the first hydrogen bomb test and named after Enrico Fermi, the heaviest element that can be produced by neutron capture in reactors, available only in tiny amounts, with isotopes from about fermium-241 to fermium-260 of which fermium-257 has the longest half-life of about 100 days; it is used only in research. The model gives public reference information only.","purpose":"Let an agent explain fermium, relay discovery, properties and isotopes from chemistry references at a public level, describe the isotopes the registry aliases name as a group, and distinguish fermium from einsteinium, mendelevium and other actinides, without operational nuclear detail.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Synthetic actinide","Tiny quantities","Named for Fermi","Research only"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What fermium is.","layers":[{"id":"definition","name":"Definition","description":"Definition.","findings":[{"id":"definition-finding","name":"Definition","description":"Definition.","questions":[{"text":"What is fermium, and how does it differ from einsteinium and mendelevium?","kind":"definition"},{"text":"Is the question about public reference facts, or operational detail the model does not give?","kind":"boundary"}]}]},{"id":"isotopes","name":"Isotopes","description":"Isotopes.","findings":[{"id":"isotopes-finding","name":"Isotopes","description":"Isotopes.","questions":[{"text":"What are the main fermium isotopes and their half-lives?","kind":"definition"},{"text":"Which entry fits isotopes of fermium?","kind":"action"}]}]}]},{"id":"science","name":"Science","description":"Chemistry.","layers":[{"id":"properties","name":"Properties","description":"Properties.","findings":[{"id":"properties-finding","name":"Properties","description":"Properties.","questions":[{"text":"What is known about fermium chemistry from trace studies?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"production","name":"Production","description":"Production.","findings":[{"id":"production-finding","name":"Production","description":"Production.","questions":[{"text":"Why is fermium the heaviest element made by neutron capture, at a general level?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"history","name":"History","description":"History.","layers":[{"id":"discovery","name":"Discovery","description":"Discovery.","findings":[{"id":"discovery-finding","name":"Discovery","description":"Discovery.","questions":[{"text":"How was fermium discovered and kept classified until 1955?","kind":"provenance"},{"text":"Which entry fits Ivy Mike?","kind":"action"}]}]},{"id":"naming","name":"Naming","description":"Naming.","findings":[{"id":"naming-finding","name":"Naming","description":"Naming.","questions":[{"text":"Why was fermium named after Enrico Fermi?","kind":"provenance"},{"text":"Which entry fits Enrico Fermi?","kind":"action"}]}]}]},{"id":"context","name":"Context","description":"Heavy elements.","layers":[{"id":"heavy","name":"Heavy","description":"Heavy element research.","findings":[{"id":"heavy-finding","name":"Heavy","description":"Heavy.","questions":[{"text":"How does fermium relate to the synthesis of heavier elements?","kind":"provenance"},{"text":"Which entry fits transuranium element?","kind":"action"}]}]},{"id":"safety","name":"Safety","description":"Safety.","findings":[{"id":"safety-finding","name":"Safety","description":"Safety.","questions":[{"text":"What radiological hazards apply, as regulators describe?","kind":"provenance"},{"text":"Which entry fits radiation protection?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Explain fermium's discovery in test debris, its naming and its place among the actinides.","Cite chemistry references for its isotopes and half-lives."],"mustNot":["Give operational detail on nuclear weapons, their debris or producing heavy elements.","Present predicted properties of fermium as measured.","Confuse fermium with the unit fermi or with other actinides."],"requiresHuman":["Any handling of radioactive material, which only licensed facilities may decide."]},"ethics":{"considerations":["Fermium's discovery is tied to a nuclear weapons test, which calls for sober treatment.","Only tiny amounts exist and claims about it should stay within the evidence."],"affectedParties":["Researchers","Students","Workers in nuclear facilities"]},"owners":{"steward":"The licensed research facility that produces it; nobody else holds it.","roles":[],"masterSystems":[]},"relations":[{"target":"Q19577","type":"parent","note":"registry parent class"},{"target":"actinide","type":"related","note":"in registry terms"},{"target":"Enrico Fermi","type":"related"},{"target":"einsteinium","type":"related","note":"and mendelevium"},{"target":"Ivy Mike","type":"related","note":"test debris"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.fermium","Wikidata: Q1896 (https://www.wikidata.org/wiki/Q1896)","CAS: 7440-72-4 fermium","atomic number: 100"]},"properties":{"applicability":"required","items":["atomic number: 100 count","discovered: 1952 year - Ivy Mike debris","longest-lived isotope: fermium-257, about 100 days note","fermium gap: neutron capture stops beyond fermium-257 note - public reference"]},"recognition":{"applicability":"required","items":["Actinide element 100","Fermium-241 to fermium-260 isotopes","Einsteinium is element 99; mendelevium is element 101","Not observed in bulk; produced in tiny amounts."]},"capabilities":{"applicability":"required","items":["explain the element","relay discovery and properties","describe isotopes","distinguish related elements"]},"hazards":{"applicability":"required","items":["Radioactivity","Agents giving operational nuclear detail","Registry aliases listing many isotopes"]},"interfaces":{"applicability":"required","items":["Radiation protection regulations","IUPAC element naming"]},"context":{"applicability":"required","items":["Scientific research.","fermium isotopes","fermium in solution chemistry studies"]}},"sources":[{"title":"Wikidata item Q1896: fermium","url":"https://www.wikidata.org/wiki/Q1896","note":"identity and sense of the item"},{"title":"Wikipedia: Fermium","url":"https://en.wikipedia.org/wiki/Fermium","note":"general description of the item"}],"openQuestions":["Should the isotopes be grouped as one sub-entry?","How should chemistry references be linked?","The registry entry lists isotope aliases; should they be grouped?"],"resources":{"spec":"/models/things/publications/thing-q1896/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1896/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T19:14:32Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-06T19:51:56+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}