ångström
E681647
The ångström is a non-SI unit of length equal to 10⁻¹⁰ meters, commonly used to express atomic-scale distances such as wavelengths of light and interatomic spacings.
All labels observed (1)
| Label | Occurrences |
|---|---|
| ångström canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7685593 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: ångström Context triple: [Anders Jonas Ångström, hasUnitNamedAfter, ångström]
-
A.
Åström
Åström is a Swedish surname most notably associated with Karl Johan Åström, a pioneering control theorist and engineer.
-
B.
Enström
Enström is a Swedish surname most notably associated with professional ice hockey player Tobias Enström.
-
C.
Lindström
Lindström is a Swedish surname borne by various notable individuals in fields such as the arts, sports, and politics.
-
D.
Sundström
Sundström is a Swedish surname borne by various notable individuals, including actress Rebecca Ferguson.
-
E.
Alström
Alström is a Swedish surname borne by individuals such as actress Hanna Alström.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: ångström Target entity description: The ångström is a non-SI unit of length equal to 10⁻¹⁰ meters, commonly used to express atomic-scale distances such as wavelengths of light and interatomic spacings.
-
A.
Åström
Åström is a Swedish surname most notably associated with Karl Johan Åström, a pioneering control theorist and engineer.
-
B.
Enström
Enström is a Swedish surname most notably associated with professional ice hockey player Tobias Enström.
-
C.
Lindström
Lindström is a Swedish surname borne by various notable individuals in fields such as the arts, sports, and politics.
-
D.
Sundström
Sundström is a Swedish surname borne by various notable individuals, including actress Rebecca Ferguson.
-
E.
Alström
Alström is a Swedish surname borne by individuals such as actress Hanna Alström.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
non-SI unit
ⓘ
unit of length ⓘ |
| approximateAtomicRadiusScale | 1 ångström ⓘ |
| approximateVisibleLightWavelengthScale | hundreds of ångströms ⓘ |
| belongsToSystem |
centimetre–gram–second system of units
ⓘ
linked to:
centimeter–gram–second system of units
|
| category | metric unit of length ⓘ |
| conversionFactorToMetre | 1e-10 ⓘ |
| dimension | length ⓘ |
| equalTo |
0.1 nanometre
ⓘ
100 picometres ⓘ 1e-10 metre ⓘ |
| etymology | derived from the surname Ångström ⓘ |
| fieldOfApplication |
nanotechnology
ⓘ
structural biology ⓘ surface science ⓘ |
| introducedBy | Anders Jonas Ångström ⓘ |
| languageOfName | Swedish ⓘ |
| largerThan | picometre ⓘ |
| namedAfter | Anders Jonas Ångström ⓘ |
| notation | Latin capital letter A with ring above ⓘ |
| notationContext | scientific literature ⓘ |
| relatedUnit |
nanometre
ⓘ
picometre ⓘ |
| scale | atomic scale ⓘ |
| SIBaseUnit | metre ⓘ |
| smallerThan | nanometre ⓘ |
| spellingVariant | angstrom ⓘ |
| statusInSI | not accepted for use with SI ⓘ |
| symbol | Å ⓘ |
| typicalBondLengthExample | C–C single bond length is about 1.54 ångströms ⓘ |
| typicalLatticeSpacingExample | crystal lattice spacings are a few ångströms ⓘ |
| typicalMagnitude | order of atomic diameters ⓘ |
| typicalUseCase |
expressing X-ray wavelengths
ⓘ
expressing bond lengths in molecules ⓘ |
| usedFor |
atomic-scale distances
ⓘ
interatomic spacings ⓘ wavelengths of light ⓘ |
| usedHistoricallyIn |
astrophysical spectroscopy
ⓘ
optical spectroscopy ⓘ |
| usedIn |
astronomy
ⓘ
atomic physics ⓘ crystallography ⓘ materials science ⓘ molecular physics ⓘ solid-state physics ⓘ spectroscopy ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: ångström Description of subject: The ångström is a non-SI unit of length equal to 10⁻¹⁰ meters, commonly used to express atomic-scale distances such as wavelengths of light and interatomic spacings.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.