curium
Let an agent explain curium and its discovery, relay properties, isotopes and applications from chemistry references at a public level, describe its role in space instruments, and distinguish curium from neighbouring actinides such as americium and berkelium.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Understand What curium is.
Definition
Definition.
Definition
Definition.
- What is curium, and how does it differ from americium and berkelium? definition
- Is the question about public reference facts, or operational detail the model does not give? boundary
Isotopes
Isotopes.
Isotopes
Isotopes.
- What are the main curium isotopes and their half-lives? definition
- Which entry fits isotopes of curium? action
Science Chemistry and physics.
Properties
Properties.
Properties
Properties.
- What are curium s physical and chemical properties? provenance
- Which references are standard? provenance
Production
Production.
Production
Production.
- How is curium produced in reactors, at a general level? provenance
- Which sources are cited? provenance
Applications Applications.
Space
Space instruments.
Space
Space.
- How is curium used in alpha particle X-ray spectrometers on Mars rovers? provenance
- Which entry fits alpha particle X-ray spectrometer? action
Power
Power sources.
Power
Power.
- How has curium been considered for radioisotope power? provenance
- Which entry fits radioisotope thermoelectric generator? action
Context History and safety.
History
History.
History
History.
- How was curium discovered and named? provenance
- Which entry fits Glenn T. Seaborg? action
Safety
Safety.
Safety
Safety.
- What are the radiological hazards and how are they managed, as regulators describe? provenance
- Which entry fits radiation protection? action
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.MAT
- Other names and narrower kinds
- curium-232, curium-233, curium-234, curium-235, curium-236, curium-237, curium-238, curium-239, curium-240, curium-241, curium-243, curium-245
What it is Filled
A synthetic radioactive actinide element with atomic number 96, symbol Cm, first made in 1944 by Seaborg, James and Ghiorso and named after Marie and Pierre Curie, produced in nuclear reactors by neutron capture in plutonium, with isotopes from curium-232 to curium-252 of which curium-242 and curium-244 are the principal practical isotopes; curium is a strong alpha emitter used in radioisotope power sources and alpha particle X-ray spectrometers on space probes. The model gives public reference information only.
Why it exists Filled
Let an agent explain curium and its discovery, relay properties, isotopes and applications from chemistry references at a public level, describe its role in space instruments, and distinguish curium from neighbouring actinides such as americium and berkelium.
Distinguishing features Filled
- Synthetic actinide
- Alpha emitter
- Named for the Curies
- Space instrument use
What robots and AI may and may not do Filled
Must not
- Provide operational detail on handling, separating or acquiring nuclear materials.
- Advise anyone on obtaining radioactive material outside the licensing regime.
- Understate the radiotoxicity of an alpha emitter if inhaled or ingested.
- Treat a sealed source as safe to open, move or dispose of without a licence.
Only with a human decision
- Any physical work with radioactive material, which requires a licensed operator.
- Reporting a lost, damaged or orphaned source.
May
- Explain curium's place in the periodic table, its discovery and its documented uses.
- Report isotope half-lives and decay modes from nuclear data references.
Moral aspects Filled
- Alpha emitters cause serious internal harm if they enter the body.
- Lost or orphaned radioactive sources have injured people who found them.
Who is affected
- Workers at licensed facilities
- People near lost sources
- Future generations near waste
Owners Filled
Steward
The licensed holder of the material; the national nuclear regulator and safeguards authorities oversee it.
Master systems
- National nuclear material registers
- Nuclear data libraries
Links to other meta-models Filled
parent
- Q105789 - registry parent class
- Q19577 - registry parent class
related
- actinide - in registry terms
- heavy metal - in registry terms
- Marie Curie - and Pierre Curie
- americium - element 95
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.curium
- Wikidata: Q1876 (https://www.wikidata.org/wiki/Q1876)
- CAS: 7440-51-9 curium
- atomic number: 96
Direct properties required Filled
- atomic number: 96 count
- longest-lived isotope: curium-247, about 15.6 million years note
- discovered: 1944 year - Berkeley
- melting point: about 1340 C
Recognition required Filled
- Actinide element 96
- Curium-242, curium-244, curium-247 and other isotopes
- Americium is element 95; berkelium is 97
- A silvery metal that glows in the dark from its radioactivity.
Capabilities and actions required Filled
- explain the element
- relay properties and isotopes
- describe applications
- distinguish related elements
Hazards and failure modes required Filled
- Radiotoxicity if ingested or inhaled
- Agents giving operational detail on nuclear materials
- Registry aliases listing many isotopes
Standards and interfaces required Filled
- Radiation protection and nuclear material regulations
- IUPAC element naming
Context of use required Filled
- Not applicable; a chemical element.
- curium isotopes from curium-232 to curium-252
- curium compounds such as oxides and halides
- curium sources in alpha particle X-ray spectrometers
- curium as a reactor by-product
Sources Filled
- Wikidata item Q1876: curium - identity and sense of the item
- Wikipedia: Curium - general description of the item
Open questions
- Should the isotopes be a single sub-entry?
- How should chemistry references be linked?
- The registry entry lists isotope aliases; should they be grouped?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q1876/spec.json