becquerel
E167633
The becquerel is the SI-derived unit used to measure radioactivity, defined as one nuclear decay per second.
All labels observed (1)
| Label | Occurrences |
|---|---|
| becquerel canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T1463496 — 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: becquerel Context triple: [International System of Units, definesUnit, becquerel]
-
A.
Fermi (unit)
The fermi is a unit of length equal to one femtometer (10⁻¹⁵ meter), commonly used in nuclear and particle physics to express sizes of atomic nuclei and subatomic particles.
-
B.
Bethe
Bethe is a surname most notably associated with Hans Bethe, the Nobel Prize–winning physicist who made foundational contributions to nuclear astrophysics and quantum mechanics.
-
C.
nobelium
Nobelium is a synthetic, highly radioactive actinide element with atomic number 102, named in honor of Alfred Nobel and used primarily for scientific research.
-
D.
Atombaupreis
The Atombaupreis was a German scientific award recognizing outstanding contributions to nuclear physics and atomic research.
-
E.
Rutherford
Rutherford is a residential and industrial suburb in the City of Maitland in New South Wales, Australia.
- 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: becquerel Target entity description: The becquerel is the SI-derived unit used to measure radioactivity, defined as one nuclear decay per second.
-
A.
Fermi (unit)
The fermi is a unit of length equal to one femtometer (10⁻¹⁵ meter), commonly used in nuclear and particle physics to express sizes of atomic nuclei and subatomic particles.
-
B.
Bethe
Bethe is a surname most notably associated with Hans Bethe, the Nobel Prize–winning physicist who made foundational contributions to nuclear astrophysics and quantum mechanics.
-
C.
nobelium
Nobelium is a synthetic, highly radioactive actinide element with atomic number 102, named in honor of Alfred Nobel and used primarily for scientific research.
-
D.
Atombaupreis
The Atombaupreis was a German scientific award recognizing outstanding contributions to nuclear physics and atomic research.
-
E.
Rutherford
Rutherford is a residential and industrial suburb in the City of Maitland in New South Wales, Australia.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
SI derived unit
ⓘ
unit of radioactivity ⓘ |
| adoptedIn | 1975 ⓘ |
| approvedBy | General Conference on Weights and Measures ⓘ |
| baseQuantity | time ⓘ |
| baseUnit | second ⓘ |
| belongsToCategory | SI units named after people ⓘ |
| category | radioactivity units ⓘ |
| conversionFromCurie | 1 Ci = 3.7×10^10 Bq ⓘ |
| conversionToCurie | 1 Bq = 2.7027×10^-11 Ci ⓘ |
| definition | one nuclear decay per second ⓘ |
| dimension | T^-1 ⓘ |
| hasMultiple |
gigabecquerel
ⓘ
kilobecquerel ⓘ megabecquerel ⓘ terabecquerel ⓘ |
| hasSubmultiple |
microbecquerel
ⓘ
millibecquerel ⓘ nanobecquerel ⓘ |
| isScalar | true ⓘ |
| isSIUnit | true ⓘ |
| isSmallerThan | curie ⓘ |
| namedAfter | Henri Becquerel ⓘ |
| namedAfterNationality | French ⓘ |
| namedAfterOccupation | physicist ⓘ |
| notationInText | Bq ⓘ |
| quantityMeasured |
activity of a radioactive source
ⓘ
radioactivity ⓘ |
| relatedConcept |
absorbed dose
ⓘ
decay constant ⓘ half-life ⓘ |
| relatedUnit |
gray
ⓘ
rutherford ⓘ sievert ⓘ |
| replacedUnit | curie ⓘ |
| SIBaseUnitExpression | s^-1 ⓘ |
| symbol | Bq ⓘ |
| systemOfUnits | International System of Units ⓘ |
| unitType | coherent derived unit ⓘ |
| usedInField |
environmental monitoring
ⓘ
health physics ⓘ nuclear medicine ⓘ nuclear physics ⓘ radiation protection ⓘ radiological engineering ⓘ radiology ⓘ |
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: becquerel Description of subject: The becquerel is the SI-derived unit used to measure radioactivity, defined as one nuclear decay per second.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.