beryllium
Let an agent explain beryllium, relay properties, uses, isotopes and occupational hazards from chemistry and occupational health sources at a public level, describe the isotopes the registry aliases name as a group, and distinguish beryllium from magnesium and other alkaline earth metals and from beryl, the mineral, without operational nuclear detail.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Understand What beryllium is.
Definition
Definition.
Definition
Definition.
- What is beryllium, and how does it differ from magnesium, other alkaline earth metals and beryl? definition
- Is the question about public reference facts, occupational health or operational detail the model does not give? boundary
Isotopes
Isotopes.
Isotopes
Isotopes.
- What are beryllium-9, beryllium-7, beryllium-10, beryllium-8 and the exotic isotopes? definition
- Which entry fits isotopes of beryllium? action
Science Properties and uses.
Properties
Properties.
Properties
Properties.
- What makes beryllium light, stiff and X-ray transparent? provenance
- Which references are standard? provenance
Uses
Uses.
Uses
Uses.
- How is beryllium used in aerospace, telescopes, X-ray windows and alloys? provenance
- Which sources are cited? provenance
Health Occupational health.
Disease
Chronic beryllium disease.
Disease
Disease.
- What is chronic beryllium disease, and how is exposure controlled, as occupational health agencies describe? provenance
- Which entry fits berylliosis? action
Limits
Exposure limits.
Limits
Limits.
- What exposure limits apply? provenance
- Which entry fits occupational exposure limit? action
Context Dating and history.
Dating
Isotope dating.
Dating
Dating.
- How is beryllium-10 used to date ice cores and exposed rock surfaces? provenance
- Which entry fits surface exposure dating? action
History
History.
History
History.
- How was beryllium discovered and first isolated? provenance
- Which entry fits the history of chemistry? 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
- beryllium-8, beryllium-7, beryllium-13, beryllium-12, beryllium-11, beryllium-6, beryllium-5, beryllium-14, beryllium-15, beryllium-16, beryllium-17, beryllium-10
What it is Filled
The chemical element with atomic number 4, symbol Be, a light, stiff, steel-grey alkaline earth metal with a high melting point, used in aerospace components, X-ray windows, copper-beryllium alloys and precision instruments, with stable beryllium-9 and radioactive isotopes such as beryllium-7 and beryllium-10 used in research and dating, and exotic short-lived isotopes such as beryllium-6, beryllium-8, beryllium-11, beryllium-12 and beryllium-13; beryllium dust is highly toxic, causing chronic beryllium disease. The model gives public reference information only.
Why it exists Filled
Let an agent explain beryllium, relay properties, uses, isotopes and occupational hazards from chemistry and occupational health sources at a public level, describe the isotopes the registry aliases name as a group, and distinguish beryllium from magnesium and other alkaline earth metals and from beryl, the mineral, without operational nuclear detail.
Distinguishing features Filled
- Very light and stiff
- X-ray transparent
- Toxic dust
- Useful isotopes
What robots and AI may and may not do Filled
Must not
- Advise machining, grinding or handling beryllium without controls against dust.
- Give operational detail on beryllium in nuclear weapons or reactors.
- Downplay chronic beryllium disease.
- List the many isotopes in the registry aliases as separate elements.
Only with a human decision
- Approving work that may expose people to beryllium dust.
May
- Explain beryllium's properties, isotopes and general uses from chemistry references.
- Relay occupational exposure guidance on beryllium dust from health and safety bodies.
Moral aspects Filled
- Beryllium dust causes chronic lung disease, sometimes years after exposure.
- Nuclear uses carry proliferation risk, so detail must stay at public level.
Who is affected
- Workers in metal and electronics
- Families exposed to dust on clothing
- The public
Owners Filled
Steward
Nobody owns the element; producers and occupational safety regulators answer for its use.
Master systems
- Chemical substance registers
Links to other meta-models Filled
parent
- Q11426 - registry parent class
- Q19563 - registry parent class
- Q428766 - registry parent class
related
- alkaline earth metal - in registry terms
- beryl
- berylliosis - chronic beryllium disease
- surface exposure dating - as beryllium-10
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.beryllium
- Wikidata: Q569 (https://www.wikidata.org/wiki/Q569)
- CAS: 7440-41-7 beryllium
- atomic number: 4
Direct properties required Filled
- atomic number: 4 count
- density: about 1.85 g/cm3
- melting point: about 1287 C
- beryllium-10 half-life: about 1.39 million years note - used in dating
Recognition required Filled
- Element 4, a light alkaline earth metal
- Beryllium-9, beryllium-7, beryllium-10, beryllium-8 and other isotopes
- Magnesium is heavier and less toxic; beryl is the mineral ore; beryllium oxide is a ceramic
- A light, hard, steel-grey metal.
Capabilities and actions required Filled
- explain the element
- relay uses and hazards
- describe isotopes
- distinguish related substances
Hazards and failure modes required Filled
- Chronic beryllium disease from dust
- Agents giving operational nuclear detail
- Registry aliases listing many isotopes
Standards and interfaces required Filled
- OSHA and EU occupational exposure limits for beryllium
- Export controls on beryllium materials
Context of use required Filled
- Aerospace, electronics, X-ray and research uses.
- metallic beryllium
- copper-beryllium alloys
- beryllium oxide ceramics
- stable beryllium-9
- cosmogenic beryllium-7 and beryllium-10
- exotic isotopes such as beryllium-8 and beryllium-13
Sources Filled
- Wikidata item Q569: beryllium - identity and sense of the item
- Wikipedia: Beryllium - general description of the item
Open questions
- Should the isotopes be grouped as one sub-entry?
- How should chemistry and occupational health sources 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-q569/spec.json