lanthanide
Let an agent explain the lanthanides and their chemistry, describe their uses and supply, help identify individual lanthanides, and address environmental and geopolitical aspects with attribution.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Chemistry Properties and trends.
Trends
Periodic trends.
Trends
Trends.
- Why do lanthanides have similar chemistry, and what is the lanthanide contraction? definition
- Which oxidation states occur? definition
Element
A specific lanthanide.
Element
Specific element.
- What are the properties and uses of this particular lanthanide? provenance
- Which entry fits it? action
Uses Applications.
Technology
Technology uses.
Technology
Technology.
- How are lanthanides used in magnets, phosphors, catalysts, lasers and batteries? provenance
- Which are most critical for clean energy? provenance
Medicine
Medical uses.
Medicine
Medicine.
- How are gadolinium contrast agents and radiolanthanides such as lutetium-177 used in medicine, in general terms? provenance
- Which safety considerations apply? provenance
Supply Mining and separation.
Sources
Where they come from.
Sources
Sources.
- Where are lanthanides mined and processed, and how concentrated is supply, according to published data? provenance
- How are they separated? definition
Policy
Policy and recycling.
Policy
Policy.
- What are the documented environmental and geopolitical issues of lanthanide supply, and what recycling and substitution efforts exist? provenance
- Is the presentation neutral and attributed? boundary
Learn Study.
Teach
Teaching lanthanides.
Teach
Teaching.
- How can the lanthanides be taught with periodic table context and everyday examples? action
- Which misconceptions arise? provenance
History
Discovery.
History
Discovery.
- How were the lanthanides discovered and separated historically? provenance
- Why were they called rare earths? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Information and virtual systems
- Entry kind
- thing
- Plane
- INF
- Domain
- INF.KNW
- Other names and narrower kinds
- radiolanthanide
What it is Filled
The series of fifteen metallic chemical elements from lanthanum to lutetium, atomic numbers 57 to 71, which together with scandium and yttrium form the rare earth elements, sharing similar chemistry because of their filling 4f electron shells; lanthanides are used in magnets, phosphors, catalysts, lasers and medical imaging, and radiolanthanides are used in nuclear medicine.
Why it exists Filled
Let an agent explain the lanthanides and their chemistry, describe their uses and supply, help identify individual lanthanides, and address environmental and geopolitical aspects with attribution.
Distinguishing features Filled
- f-block series
- Similar chemistry
- Lanthanide contraction
- Technology-critical
What robots and AI may and may not do Filled
Must not
- Assist in handling radiolanthanides outside a licensed facility or without radiation protection.
- Present supply, price or reserve figures without their source and date.
- Help evade export controls, sanctions or origin rules on rare earth trade.
- Advise disposal of separation residues outside the rules for hazardous or radioactive waste.
Only with a human decision
- Administering or ordering radiolanthanide medicines or imaging agents for a patient.
- Sourcing decisions that depend on conditions in mining communities.
May
- Report the properties, uses and supply sources of lanthanides from published scientific and trade data.
- Distinguish the lanthanide series from the wider rare earth group when describing a material.
- Track lanthanide content in products and waste streams for recycling it is authorized to manage.
Moral aspects Filled
- Mining and separation leave toxic and sometimes radioactive residues that burden local communities.
- Concentrated supply makes these elements a lever of geopolitical pressure.
Who is affected
- Mining communities
- Workers in separation and recycling
- Patients receiving radiolanthanides
Owners Filled
Steward
Nobody owns the series; each producer, holder or licensed facility answers for its own material.
Links to other meta-models Filled
parent
- Q1130479 - registry parent class
- Q190444 - registry parent class
related
- rare earth element - category
- lithophile element - category
- actinide - analogous series
- periodic table - placement
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.lanthanide
- Wikidata: Q19569 (https://www.wikidata.org/wiki/Q19569)
Direct properties not applicable Not applicable
Not applicable
Plane INF: no invented physical properties.
Recognition optional Filled
- Elements 57 to 71
- 4f electron filling
- Actinides are the analogous 5f series
- Silvery metals that tarnish in air; compounds often coloured or luminescent.
Capabilities and actions required Filled
- explain lanthanide chemistry and trends
- describe uses in technology and medicine
- explain supply and recycling
- identify individual elements
Hazards and failure modes required Filled
- Supply concentration and disruption
- Environmental impact of mining and separation
- Confusing lanthanides with all rare earths
Standards and interfaces required Filled
- Chemical safety data sheets
- Critical raw material policies
- Radiopharmaceutical regulation for radiolanthanides
Context of use required Filled
- Chemistry and technology of rare earth metals.
- light lanthanides
- heavy lanthanides
- radiolanthanides for medicine
- lanthanide compounds and phosphors
- rare earth elements including scandium and yttrium (related)
Sources Filled
- Wikidata item Q19569: lanthanide - identity and sense of the item
- Wikipedia: Lanthanide - general description of the item
Open questions
- Should each lanthanide be linked to its element entry?
- How should supply data be linked?
- How should recycling research be linked?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q19569/spec.json