nitrogen-14
E368991
Nitrogen-14 is the most abundant stable isotope of nitrogen and a key intermediate nucleus in stellar fusion processes such as the CNO (Bethe–Weizsäcker) cycle.
All labels observed (1)
| Label | Occurrences |
|---|---|
| nitrogen-14 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3576655 — 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: nitrogen-14 Context triple: [Bethe–Weizsäcker cycle, involves, nitrogen-14]
-
A.
Element 14
Element 14 was a technology company formed from the remnants of Acorn Computers, focusing on advanced semiconductor and digital TV technologies.
-
B.
Niton
Niton is a coastal village on the southern tip of the Isle of Wight in England, known for its scenic cliffs and rural character.
-
C.
Niwt-Imn
Niwt-Imn is the ancient Egyptian name for the city later known as Thebes, a major religious and political center along the Nile.
-
D.
deuteron
A deuteron is the positively charged nucleus of deuterium, consisting of one proton and one neutron bound together.
-
E.
Zinin
Zinin is a Russian surname most notably associated with chemist Nikolai Zinin, a pioneer in organic chemistry.
- 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: nitrogen-14 Target entity description: Nitrogen-14 is the most abundant stable isotope of nitrogen and a key intermediate nucleus in stellar fusion processes such as the CNO (Bethe–Weizsäcker) cycle.
-
A.
Element 14
Element 14 was a technology company formed from the remnants of Acorn Computers, focusing on advanced semiconductor and digital TV technologies.
-
B.
Niton
Niton is a coastal village on the southern tip of the Isle of Wight in England, known for its scenic cliffs and rural character.
-
C.
Niwt-Imn
Niwt-Imn is the ancient Egyptian name for the city later known as Thebes, a major religious and political center along the Nile.
-
D.
deuteron
A deuteron is the positively charged nucleus of deuterium, consisting of one proton and one neutron bound together.
-
E.
Zinin
Zinin is a Russian surname most notably associated with chemist Nikolai Zinin, a pioneer in organic chemistry.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
nitrogen isotope
ⓘ
nuclide ⓘ stable isotope ⓘ |
| actsAs | bottleneck nucleus in CNO cycle ⓘ |
| atomicNumber | 7 ⓘ |
| belongsToElement | nitrogen ⓘ |
| bindingEnergyPerNucleonApproxMeV | 7.47 ⓘ |
| category | isotopes of nitrogen ⓘ |
| chemicalSymbol | N-14 ⓘ |
| destroyedBy | proton capture to form oxygen-15 in stars ⓘ |
| discoveredAsIsotopeBy | Frederick Soddy ⓘ |
| dominantIsotopeIn | Earth atmosphere nitrogen ⓘ |
| elementSymbol | N ⓘ |
| formedBy | proton capture on carbon-13 in stars ⓘ |
| fractionOfAtmosphericNitrogen | about 0.99 ⓘ |
| hasIsotopicPairWith | nitrogen-15 ⓘ |
| hasQuadrupoleMoment | true ⓘ |
| isotopicCompositionStandard | reference for δ15N measurements ⓘ |
| isotopicRatioWithNitrogen15Notation | 14N/15N ⓘ |
| isStable | true ⓘ |
| massNumber | 14 ⓘ |
| mostAbundantIsotopeOf | nitrogen ⓘ |
| naturalAbundanceInNitrogen | 0.99636 ⓘ |
| naturalAbundanceInNitrogenPercent | 99.636 ⓘ |
| neutronNumber | 7 ⓘ |
| nuclearMagneticMomentSign | positive ⓘ |
| nuclearSpin | 1 ⓘ |
| nuclearSpinParity | 1+ ⓘ |
| occursIn | Earth atmosphere ⓘ |
| presentIn |
amino acids
ⓘ
ammonium compounds ⓘ atmospheric dinitrogen (N2) ⓘ nitrate compounds ⓘ nucleic acids ⓘ proteins ⓘ |
| producedIn |
Bethe–Weizsäcker cycle
ⓘ
CNO cycle ⓘ
linked to:
Bethe–Weizsäcker cycle
|
| radioactive | false ⓘ |
| roleInStellarFusion | key intermediate nucleus in CNO cycle ⓘ |
| standardAtomicWeightApprox | 14.003074 ⓘ |
| usedAs |
baseline for δ15N notation
ⓘ
reference isotope in stable nitrogen isotope geochemistry ⓘ |
| usedIn |
Mössbauer spectroscopy of nitrogen compounds
ⓘ
dating of some geological and environmental processes via 14N/15N ratios ⓘ nuclear magnetic resonance of nitrogen-containing compounds ⓘ studies of nitrogen cycle in ecology ⓘ tracing biochemical nitrogen pathways ⓘ |
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: nitrogen-14 Description of subject: Nitrogen-14 is the most abundant stable isotope of nitrogen and a key intermediate nucleus in stellar fusion processes such as the CNO (Bethe–Weizsäcker) cycle.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.