berkelium
Let an agent explain berkelium and its properties, relay discovery, isotopes and research uses from chemistry references at public reference level, describe its role in synthesising superheavy elements, and distinguish berkelium from neighbouring actinides, without sensitive nuclear detail.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Understand What berkelium is.
Definition
Definition and properties.
Definition
Definition.
- What is berkelium, and how does it differ from curium and californium? definition
- Is the question about the element, an isotope, research use or sensitive matters the model does not cover? boundary
Isotopes
Isotopes.
Isotopes
Isotopes.
- What are berkelium-247, berkelium-249 and the short-lived isotopes, at public reference level? definition
- Which entry fits the specific isotope? action
Research Research uses.
Superheavy
Superheavy elements.
Superheavy
Superheavy.
- How was berkelium-249 used to discover tennessine, as published? provenance
- Which references are standard? provenance
Chemistry
Chemistry.
Chemistry
Chemistry.
- What is known about berkelium chemistry and compounds? provenance
- Which sources are cited? provenance
Production Production and safety.
Production
Production.
Production
Production.
- Where and how is berkelium produced, at public reference level? provenance
- Is the presentation non-sensitive? boundary
Safety
Safety.
Safety
Safety.
- What radiation safety rules apply to berkelium? provenance
- Which entry fits radiation protection? action
Context History.
History
History.
History
History.
- How was berkelium discovered and named? provenance
- Which entry fits Lawrence Berkeley National Laboratory? action
Table
Periodic table.
Table
Table.
- Where does berkelium sit among the actinides? provenance
- Which entry fits actinide? 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
- berkelium-235, berkelium-236, berkelium-237, berkelium-238, berkelium-239, berkelium-240, berkelium-241, berkelium-242, berkelium-243, berkelium-244, berkelium-245, berkelium-246
What it is Filled
A synthetic radioactive element with atomic number 97, an actinide first produced in 1949 at Berkeley by Seaborg, Ghiorso and Thompson and named after the city, with known isotopes including berkelium-247 and berkelium-249; berkelium-249 is used as a target to make heavier elements. Berkelium has no uses outside research and is described here at public reference level.
Why it exists Filled
Let an agent explain berkelium and its properties, relay discovery, isotopes and research uses from chemistry references at public reference level, describe its role in synthesising superheavy elements, and distinguish berkelium from neighbouring actinides, without sensitive nuclear detail.
Distinguishing features Filled
- Synthetic actinide
- Research only
- Superheavy element target
- Milligram scale
What robots and AI may and may not do Filled
Must not
- Provide any guidance that would help obtain, handle or apply nuclear material.
- Confuse berkelium with neighbouring actinides when citing properties.
- Treat a laboratory-only element as something available for private use.
- Present speculative applications as established.
Only with a human decision
- Any handling of radioactive material, which is for licensed facilities only.
May
- Explain berkelium's place among the actinides and its history as a synthetic element.
- Describe its isotopes and half-lives from published nuclear data tables.
Moral aspects Filled
- Radioactive materials endanger people who are unaware of exposure.
- Nuclear knowledge must be shared in ways that do not aid misuse.
Who is affected
- Laboratory workers
- The public
- Waste handlers
Owners Filled
Steward
The licensed research facility that holds any sample; the national nuclear regulator oversees it.
Master systems
- National radioactive material registers
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
- tennessine - as a target
- Berkeley, California
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.berkelium
- Wikidata: Q1882 (https://www.wikidata.org/wiki/Q1882)
- CAS: 7440-40-6 berkelium
- symbol: Bk element symbol
Direct properties required Filled
- atomic number: 97 count
- discovered: 1949 year - Berkeley
- berkelium-247 half-life: about 1380 years
- berkelium-249 half-life: 330 days - target for tennessine
Recognition required Filled
- Berkelium is element 97 and an actinide.
- Known isotopes include berkelium-247 and berkelium-249.
- Curium is element 96, while californium is element 98.
- A silvery metal, produced only in milligram quantities.
Capabilities and actions required Filled
- explain properties
- relay discovery and isotopes
- describe research uses
- distinguish related elements
Hazards and failure modes required Filled
- Agents providing sensitive nuclear detail
- Registry aliases naming many isotopes
- Confusing with neighbouring actinides
Standards and interfaces required Filled
- Radiation safety regulations
- Nuclear material accounting
Context of use required Filled
- Not applicable; a chemical element.
- berkelium-249 as a target material
- berkelium-247 the longest-lived isotope
- short-lived isotopes from berkelium-233 to berkelium-240
- berkelium compounds studied in research
Sources Filled
- Wikidata item Q1882: berkelium - identity and sense of the item
- Wikipedia: Berkelium - general description of the item
Open questions
- Should berkelium-249 be a separate entry?
- How should chemistry references be linked?
- The registry entry has merged aliases naming isotopes; should they be split off?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q1882/spec.json