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Published

polonium

vr.tr.polonium · thing-q979

Let an agent explain polonium as an element and its properties, isotopes and history, describe its limited uses and its radiological hazards with reference to authorities, and decline requests for acquisition or handling detail.

Thing Registry Physical world and living systems PHY.MAT

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Understand What polonium is.

Element

The element.

Element

Element.

  1. What are the properties, isotopes and natural occurrence of polonium? definition
  2. Is the request seeking acquisition or handling detail, which must be declined? boundary

Radioactivity

Radioactivity.

Radioactivity

Radioactivity.

  1. Why is polonium-210 such an intense alpha emitter, and how does it fit in the uranium decay chain? definition
  2. Which entry fits radioactive decay? action
Use Uses and hazards.

Uses

Uses.

Uses

Uses.

  1. What limited industrial and space uses does polonium have, and how are sources controlled? provenance
  2. Which entry fits radioactive sources? action

Hazards

Hazards.

Hazards

Hazards.

  1. What do radiation protection authorities say about polonium toxicity and exposure? provenance
  2. Is a suspected exposure present now, requiring emergency and radiation authorities? boundary
History History and cases.

Discovery

Discovery.

Discovery

Discovery.

  1. How did the Curies discover polonium, and why was it named after Poland? provenance
  2. Which references are standard? provenance

Cases

Notable cases.

Cases

Cases.

  1. Which documented poisoning cases involved polonium, as established by inquiries and courts, with findings attributed? provenance
  2. Is the presentation attributed and free of operational detail? boundary
Learn Teaching.

Teach

Teaching.

Teach

Teaching.

  1. How can polonium illustrate radioactivity and the history of science? action
  2. Which misconceptions arise? provenance

Environment

Environmental polonium.

Environment

Environment.

  1. How does polonium occur in the environment and in tobacco smoke, according to research? provenance
  2. Which entry fits environmental radioactivity? 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
polonium-209, polonium-188, polonium-189, polonium-190, polonium-191, polonium-191m, polonium-192, polonium-192m, polonium-193, polonium-193m, polonium-194, polonium-194m

What it is Filled

The chemical element with atomic number eighty-four, a rare, highly radioactive metal in group sixteen discovered by Marie and Pierre Curie in 1898 and named after Poland, occurring in trace amounts in uranium ores and produced artificially, with isotopes such as polonium-210, an intense alpha emitter, and many short-lived isotopes; polonium is used in static eliminators and as a heat source in some space applications, is extremely toxic when ingested or inhaled, and is described here without any procedural detail on handling or acquisition.

Why it exists Filled

Let an agent explain polonium as an element and its properties, isotopes and history, describe its limited uses and its radiological hazards with reference to authorities, and decline requests for acquisition or handling detail.

Distinguishing features Filled

  • Rarity
  • Alpha radioactivity
  • Extreme toxicity
  • Historic discovery

What robots and AI may and may not do Filled

Must not

  • Give any information on acquiring, producing, concentrating or handling polonium.
  • Assist in using any radioactive material to harm a person.
  • Describe exposure scenarios or doses in a way that could guide a poisoning.
  • Speculate about named people being poisoned without published findings.

Only with a human decision

  • Any request involving the possession, transport or disposal of a radioactive source.

May

  • Explain polonium's discovery, place in the periodic table and history with sources.
  • State that it is extremely hazardous and regulated, and point to radiation protection authorities.

Moral aspects Filled

  • Polonium has been used to murder; information about it must not serve harm.
  • Radiation incidents frighten and harm the public and responders.

Who is affected

  • Potential victims
  • Emergency responders
  • The public

Owners Filled

Steward

The licensed holder of a source; nuclear regulators control possession.

Master systems

  • National registers of licensed radioactive sources

Links to other meta-models Filled

parent

  • Q104567 - registry parent class
  • Q19591 - registry parent class

related

  • post-transition metal - category
  • group 16 - category
  • iridium - another element entry
  • nuclear fission - radioactivity and nuclear science

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.polonium
  • Wikidata: Q979 (https://www.wikidata.org/wiki/Q979)

Direct properties required Filled

  • Mass density: Approximately 9.2 g/cm3 - This approximate value describes solid alpha polonium near room temperature.
  • Melting temperature: Approximately 254 degree Celsius - This approximate value describes the solid-to-liquid transition near atmospheric pressure.

Recognition required Filled

  • Atomic number eighty-four
  • Intense alpha emitter
  • Bismuth and tellurium are neighbouring elements
  • A silvery metal, rarely seen because of its radioactivity.

Capabilities and actions required Filled

  • explain the element and isotopes
  • describe uses and hazards
  • describe history
  • decline acquisition or handling detail

Hazards and failure modes required Filled

  • Providing acquisition or handling detail, which must be declined
  • Severe radiation poisoning
  • Confusing polonium with other elements

Standards and interfaces required Filled

  • Radiation protection and radioactive materials law
  • Controls on radioactive sources
  • Chemical safety regulations

Context of use required Filled

  • Element eighty-four, a radioactive metal.
  • polonium-210
  • polonium-209 and other isotopes
  • polonium in uranium decay chains
  • polonium in static eliminators
  • polonium as a radioisotope heat source

Sources Filled

  1. Wikidata item Q979: polonium - identity and sense of the item
  2. Wikipedia: Polonium - general description of the item

Open questions

  • Should polonium-210 be a separate entry?
  • How should radiation authorities be linked?
  • How should the history of its discovery be linked?

Machine files

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q979/spec.json