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alkali metal

vr.tr.alkali-metal · thing-q19557

Let an agent explain the alkali metals and their properties, relay trends, reactions and uses from chemistry references at a public level, describe the predicted heavier members, and distinguish alkali metals from alkaline earth metals, from hydrogen in group 1 and from alkalis as bases.

Thing Registry Physical world and living systems PHY.MAT
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Understand What alkali metals are.

Definition

Definition.

Definition

Definition.

  1. What are the alkali metals, and how do they differ from alkaline earth metals, hydrogen and alkalis? definition
  2. Is the question about the group, an element, reactions or predicted elements? boundary

Members

Members.

Members

Members.

  1. What are lithium, sodium, potassium, rubidium, caesium, francium and the predicted ununennium and unsepttrium? definition
  2. Which entry fits the specific element? action
Chemistry Chemistry.

Trends

Trends.

Trends

Trends.

  1. How do atomic radius, ionisation energy, reactivity and melting point vary down the group? provenance
  2. Which references are standard? provenance

Reactions

Reactions.

Reactions

Reactions.

  1. How do alkali metals react with water, halogens and oxygen? provenance
  2. Which sources are cited? provenance
Uses Uses and safety.

Uses

Uses.

Uses

Uses.

  1. How are alkali metals used in batteries, atomic clocks, medicine and industry? provenance
  2. Which entry fits lithium-ion battery? action

Safety

Safety.

Safety

Safety.

  1. How are alkali metals stored and handled safely, as regulators describe? provenance
  2. Which entry fits hazardous material? action
Context History and frontiers.

History

History.

History

History.

  1. How were the alkali metals discovered, from Davy s electrolysis to francium? provenance
  2. Which entry fits the history of the periodic table? action

Frontiers

Predicted elements.

Frontiers

Frontiers.

  1. What is predicted for ununennium and unsepttrium, and how are they sought? provenance
  2. Which entry fits extended periodic table? 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
unsepttrium, ununennium

What it is Filled

Any of the chemical elements of group 1 of the periodic table, lithium, sodium, potassium, rubidium, caesium and francium, soft, highly reactive metals with one valence electron that react vigorously with water to form alkaline hydroxides, with the undiscovered elements ununennium, element 119, and unsepttrium, element 173, predicted to belong to the group; alkali metals are stored under oil or inert gas and are essential in batteries, chemistry and biology.

Why it exists Filled

Let an agent explain the alkali metals and their properties, relay trends, reactions and uses from chemistry references at a public level, describe the predicted heavier members, and distinguish alkali metals from alkaline earth metals, from hydrogen in group 1 and from alkalis as bases.

Distinguishing features Filled

  • One valence electron
  • Highly reactive
  • Soft and low density
  • Alkaline hydroxides

What robots and AI may and may not do Filled

Must not

  • Provide instructions for reactions of alkali metals intended to cause fires or explosions.
  • Handle or store alkali metals outside a laboratory's safety procedures.
  • Advise disposing of alkali metals in water, drains or ordinary waste.
  • Encourage demonstrations with alkali metals outside supervised settings.

Only with a human decision

  • Any handling, transport or disposal of the metals.
  • Responding to a fire involving alkali metals.

May

  • Explain the properties and periodic trends of the alkali metals in general terms.
  • Read hazard labels and safety data sheets for alkali metals and report them.

Moral aspects Filled

  • Reactive metals cause burns and fires that harm students and workers.
  • Lithium and caesium mining raises environmental and labour concerns.

Who is affected

  • Laboratory workers
  • Students
  • Emergency responders

Owners Filled

Steward

The holder of the chemicals, under chemical safety regulators.

Master systems

  • Chemical substance registers

Links to other meta-models Filled

parent

  • Q11426 - registry parent class
  • Q2512777 - registry parent class
  • Q7973224 - registry parent class

related

  • metal - in registry terms
  • water-reactive substance - in registry terms
  • alkaline earth metal - group 2
  • sodium - the most familiar member

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.alkali-metal
  • Wikidata: Q19557 (https://www.wikidata.org/wiki/Q19557)

Direct properties required Filled

  • members: 6 known count
  • reactivity: increases down the group note
  • caesium melting point: about 28.5 C
  • ununennium: element 119, not yet synthesised note

Recognition required Filled

  • Group 1 metals with one valence electron
  • Lithium, sodium, potassium, rubidium, caesium, francium; predicted ununennium and unsepttrium
  • Alkaline earth metals are group 2; hydrogen is a non-metal in group 1; alkalis are bases
  • Soft, silvery metals that tarnish quickly in air.

Capabilities and actions required Filled

  • explain the group
  • relay properties and trends
  • describe predicted elements
  • distinguish related concepts

Hazards and failure modes required Filled

  • Fire and explosion on contact with water
  • Confusing with alkaline earth metals or alkalis
  • Registry aliases naming hypothetical elements

Standards and interfaces required Filled

  • Hazardous materials rules for storage and transport
  • IUPAC nomenclature for undiscovered elements

Context of use required Filled

  • Not applicable; an element group.
  • lithium
  • sodium
  • potassium
  • rubidium
  • caesium
  • francium
  • predicted ununennium and unsepttrium

Sources Filled

  1. Wikidata item Q19557: alkali metal - identity and sense of the item
  2. Wikipedia: Alkali metal - general description of the item

Open questions

  • Should ununennium be a separate primary entry?
  • How should chemistry references be linked?
  • The registry entry has merged aliases naming hypothetical elements; should they be split off?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q19557/spec.json