holmium
Let an agent explain holmium as an element and its properties, describe its uses in lasers, magnets and nuclear applications, describe rare earth supply, and support learning without personal medical advice.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Understand What holmium is.
Element
The element.
Element
Element.
- What are the properties, occurrence and chemistry of holmium? definition
- Which entry fits the periodic table? action
Isotopes
Isotopes and magnetism.
Isotopes
Isotopes.
- What isotopes of holmium exist, and why does it have the highest magnetic moment? definition
- Which entry fits magnetism? action
Use Uses.
Lasers
Lasers and medicine.
Lasers
Lasers.
- How are holmium lasers used in medical and dental procedures, according to clinical sources? provenance
- Is the user asking about their own procedure, which needs a clinician? boundary
Other
Magnets, nuclear and glass.
Other
Other.
- How is holmium used in magnets, control rods and glass colouring? provenance
- Which entry fits a specific application? action
Supply Supply and environment.
Mining
Rare earth supply.
Mining
Mining.
- Where is holmium produced, and what supply and environmental issues affect rare earths, according to public sources? provenance
- Is the information current? boundary
Recycling
Recycling.
Recycling
Recycling.
- How are rare earths including holmium recycled? provenance
- Which entry fits rare earth elements? action
Learn History and teaching.
History
History.
History
History.
- How was holmium discovered and named? provenance
- Which references are standard? provenance
Teach
Teaching.
Teach
Teaching.
- How can holmium illustrate lanthanide chemistry and magnetism? action
- Which misconceptions arise? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.MAT
- Other names and narrower kinds
- holmium-165, holmium-166, holmium-167, holmium-168, holmium-169, holmium-170, holmium-171, holmium-172, holmium-173, holmium-174, holmium-175, holmium-140
What it is Filled
The chemical element with atomic number sixty-seven, a silvery lanthanide metal found in rare earth minerals, with one stable isotope, holmium-165, and radioactive isotopes such as holmium-166 used in medical research, notable for the highest magnetic moment of any element and used in magnets, lasers for medical and dental procedures, nuclear control rods and glass colouring; holmium is obtained from monazite and other rare earth ores and is described here with medical uses attributed to clinical sources.
Why it exists Filled
Let an agent explain holmium as an element and its properties, describe its uses in lasers, magnets and nuclear applications, describe rare earth supply, and support learning without personal medical advice.
Distinguishing features Filled
- Strong magnetism
- Laser uses
- Single stable isotope
- Rare earth
What robots and AI may and may not do Filled
Must not
- Give personal advice on holmium laser procedures.
- Advise on handling radioactive holmium isotopes outside licensed settings.
- Present supply figures without dates and sources.
- Confuse holmium with other lanthanides.
Only with a human decision
- Using radioactive holmium isotopes.
May
- Explain holmium's properties and uses in lasers and magnets.
- Describe rare earth supply chains from published sources.
- Distinguish holmium from other lanthanides.
Moral aspects Filled
- Rare earth mining carries environmental and labour costs.
- Medical uses must be governed by clinicians.
Who is affected
- Mining communities
- Patients
- Workers
Owners Filled
Steward
Nobody owns the element; holders own their material, and nuclear regulators license radioactive isotopes.
Links to other meta-models Filled
parent
- Q19569 - registry parent class
related
- lanthanide - category
- chemical element - category
- rhenium - another rare metal with specialised uses
- nuclear fission - control rod applications
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.holmium
- Wikidata: Q1846 (https://www.wikidata.org/wiki/Q1846)
Direct properties required Filled
- Mass density: Approximately 8.8 g/cm3 - This approximate value describes solid holmium near room temperature.
- Melting temperature: Approximately 1474 degrees Celsius - This approximate value describes pure holmium at atmospheric pressure.
- Molar mass: Approximately 164.93 g/mol - This value describes naturally occurring holmium, which consists essentially of holmium-165.
Recognition required Filled
- Atomic number sixty-seven
- Lanthanide with the highest magnetic moment
- Dysprosium and erbium are neighbouring lanthanides
- A silvery metal.
Capabilities and actions required Filled
- explain the element
- describe uses
- describe supply
- support learning
Hazards and failure modes required Filled
- Rare earth supply concentration
- Agents giving personal advice on laser procedures
- Confusing lanthanides
Standards and interfaces required Filled
- Chemical nomenclature
- Medical device regulation for lasers
- Critical raw material assessments
Context of use required Filled
- Element sixty-seven, a lanthanide.
- holmium metal
- holmium in magnets
- holmium lasers
- holmium compounds and glass colouring
- holmium isotopes
Sources Filled
- Wikidata item Q1846: holmium - identity and sense of the item
- Wikipedia: Holmium - general description of the item
Open questions
- Should holmium lasers be a separate entry?
- How should supply data be linked?
- How should clinical guidance be linked?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q1846/spec.json