{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.argon","code":"thing-q696","url":"https://ver.cy/models/thing/q696/","name":"argon","alternateNames":["argon-41","argon-43","argon-44","argon-45","argon-46","argon-47","argon-48","argon-31","argon-30","argon-32","argon-33","argon-34"],"kind":"thing","status":"published","version":"0.2.0-wave.3","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 chemical element with symbol Ar and atomic number 18, a colourless, odourless noble gas making up about 0.93 percent of the atmosphere, the most abundant noble gas on Earth, produced by fractional distillation of liquid air and used as an inert shielding gas in welding, in incandescent and fluorescent lamps, in double glazing and in laboratory and preservation atmospheres, with stable isotopes argon-36, 38 and 40 and radioactive isotopes such as argon-39 and argon-41 through the short-lived argon-43 to argon-47 known from experiments.","purpose":"Let an agent explain argon as an element and its properties, relay isotopes, occurrence and production from chemistry references, describe uses and hazards, and distinguish argon from other noble gases.","scope":{"in":[],"out":[],"boundaries":[]},"distinguishingFeatures":["Inert","Abundant noble gas","From air distillation","Argon-40 from potassium decay"],"structure":{"bundles":[{"id":"understand","name":"Understand","description":"What argon is.","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 argon, and why is it inert?","kind":"definition"},{"text":"Is the question about the element, an isotope or another noble gas?","kind":"boundary"}]}]},{"id":"isotopes","name":"Isotopes","description":"Isotopes.","findings":[{"id":"isotopes-finding","name":"Isotopes","description":"Isotopes.","questions":[{"text":"What isotopes of argon exist, and why is argon-40 dominant on Earth?","kind":"measurement"},{"text":"Which entry fits the specific isotope?","kind":"action"}]}]}]},{"id":"use","name":"Use","description":"Uses.","layers":[{"id":"industry","name":"Industry","description":"Industry.","findings":[{"id":"industry-finding","name":"Industry","description":"Industry.","questions":[{"text":"How is argon used in welding, lighting, glazing and metallurgy?","kind":"provenance"},{"text":"Which references are standard?","kind":"provenance"}]}]},{"id":"science","name":"Science","description":"Science.","findings":[{"id":"science-finding","name":"Science","description":"Science.","questions":[{"text":"How is argon used in dating, detectors, lasers and preservation?","kind":"provenance"},{"text":"Which sources are cited?","kind":"provenance"}]}]}]},{"id":"produce","name":"Produce","description":"Occurrence and production.","layers":[{"id":"occurrence","name":"Occurrence","description":"Occurrence.","findings":[{"id":"occurrence-finding","name":"Occurrence","description":"Occurrence.","questions":[{"text":"Where does argon occur in the atmosphere and in other planets?","kind":"provenance"},{"text":"Which entry fits atmosphere of Earth?","kind":"action"}]}]},{"id":"production","name":"Production","description":"Production.","findings":[{"id":"production-finding","name":"Production","description":"Production.","questions":[{"text":"How is argon separated from air and supplied?","kind":"provenance"},{"text":"Which entry fits air separation?","kind":"action"}]}]}]},{"id":"context","name":"Context","description":"Safety and history.","layers":[{"id":"safety","name":"Safety","description":"Safety.","findings":[{"id":"safety-finding","name":"Safety","description":"Safety.","questions":[{"text":"What are the asphyxiation and cold hazards of argon, and how are they managed?","kind":"provenance"},{"text":"Which entry fits inert gas asphyxiation?","kind":"action"}]}]},{"id":"history","name":"History","description":"History.","findings":[{"id":"history-finding","name":"History","description":"History.","questions":[{"text":"How was argon discovered by Rayleigh and Ramsay in 1894?","kind":"provenance"},{"text":"Which entry fits the discovery of the noble gases?","kind":"action"}]}]}]}]},"agentConduct":{"may":["Give properties, uses and abundance of argon from cited sources.","Monitor argon cylinders and oxygen levels in spaces the agent is authorized to manage."],"mustNot":["Allow people into confined spaces where argon may have displaced oxygen without testing and controls.","Treat argon as harmless because it is inert and odourless.","Move or vent gas cylinders outside the site's safety procedures."],"requiresHuman":["Permitting entry to a confined space after an argon leak."]},"ethics":{"considerations":["Argon can suffocate people without warning because it cannot be smelled.","Welders and lab workers are most exposed."],"affectedParties":["Welders","Laboratory staff","Rescuers"]},"owners":{"steward":"Nobody owns the element; holders of cylinders answer for gas safety.","roles":[],"masterSystems":[]},"relations":[{"target":"Q19609","type":"parent","note":"registry parent class"},{"target":"noble gases","type":"related","note":"in registry terms"},{"target":"fractional distillation","type":"related","note":"of liquid air"},{"target":"gas metal arc welding","type":"related","note":"as shielding gas"},{"target":"potassium-argon dating","type":"related","note":"through argon-40"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.argon","Wikidata: Q696 (https://www.wikidata.org/wiki/Q696)","CAS: 7440-37-1 argon","symbol: Ar element"]},"properties":{"applicability":"required","items":["atomic number: 18 Z","standard atomic weight: 39.95 u","atmospheric share: about 0.934 percent - by volume","boiling point: -185.8 C","stable isotopes: 36, 38, 40 mass numbers"]},"recognition":{"applicability":"required","items":["Colourless noble gas from air","Argon gas, isotopes argon-36, 38, 40 stable, argon-39 and 41 and heavier radioactive isotopes","Helium and neon are lighter noble gases; nitrogen is not a noble gas","An invisible gas that glows violet-blue in a discharge."]},"capabilities":{"applicability":"required","items":["explain properties","relay isotopes and occurrence","describe uses and hazards","distinguish from other noble gases"]},"hazards":{"applicability":"required","items":["Asphyxiation in confined spaces","Confusing argon with other inert gases","Cold burns from liquid argon"]},"interfaces":{"applicability":"required","items":["Industrial gas safety standards","Confined space and asphyxiation rules","Welding gas specifications"]},"context":{"applicability":"required","items":["Inert atmospheres, lighting and insulation.","argon gas and liquid argon","stable isotopes","argon-39 and argon-41 radioactive isotopes","short-lived isotopes argon-43 to argon-47 and lighter ones","argon compounds such as argon fluorohydride under special conditions"]}},"sources":[{"title":"Wikidata item Q696: argon","url":"https://www.wikidata.org/wiki/Q696","note":"identity and sense of the item"},{"title":"Wikipedia: Argon","url":"https://en.wikipedia.org/wiki/Argon","note":"general description of the item"}],"openQuestions":["Should isotopes of argon be a separate entry?","How should chemistry references be linked?","The registry entry has merged aliases naming individual isotopes; should they be split off?"],"resources":{"spec":"/models/things/publications/thing-q696/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q696/spec.json"],"providers":["Claude"],"researchStatus":"unreviewed","generatedAt":"2026-09-13T05:02:28Z","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 2026-10-06T19:52:01+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}