neptunium-239
E1355866
UNEXPLORED
Neptunium-239 is a short-lived radioactive isotope of neptunium that serves as an important intermediate in the production of plutonium-239 in nuclear reactors.
All labels observed (1)
| Label | Occurrences |
|---|---|
| neptunium-239 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T18950798 — 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: neptunium-239 Context triple: [neptunium, hasIsotope, neptunium-239]
-
A.
neptunium-238
Neptunium-238 is a radioactive isotope of neptunium used primarily in nuclear research and as an intermediate in the production of plutonium-238.
-
B.
neptunium-235
Neptunium-235 is a radioactive isotope of the actinide element neptunium, notable for its nuclear properties and relevance in theoretical nuclear fuel cycles and transmutation studies.
-
C.
neptunium
Neptunium is a radioactive, synthetic actinide metal and the first transuranium element, used mainly in nuclear research and reactor applications.
-
D.
fermium-252
Fermium-252 is a highly radioactive synthetic isotope of the actinide element fermium, notable for its use in scientific research on heavy elements and nuclear properties.
-
E.
Plutonium (Ploutonion)
Plutonium (Ploutonion) is an ancient Greco-Roman religious sanctuary and cave at Hierapolis, believed to be an entrance to the underworld and associated with the god Pluto/Hades.
- 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: neptunium-239 Target entity description: Neptunium-239 is a short-lived radioactive isotope of neptunium that serves as an important intermediate in the production of plutonium-239 in nuclear reactors.
-
A.
neptunium-238
Neptunium-238 is a radioactive isotope of neptunium used primarily in nuclear research and as an intermediate in the production of plutonium-238.
-
B.
neptunium-235
Neptunium-235 is a radioactive isotope of the actinide element neptunium, notable for its nuclear properties and relevance in theoretical nuclear fuel cycles and transmutation studies.
-
C.
neptunium
Neptunium is a radioactive, synthetic actinide metal and the first transuranium element, used mainly in nuclear research and reactor applications.
-
D.
fermium-252
Fermium-252 is a highly radioactive synthetic isotope of the actinide element fermium, notable for its use in scientific research on heavy elements and nuclear properties.
-
E.
Plutonium (Ploutonion)
Plutonium (Ploutonion) is an ancient Greco-Roman religious sanctuary and cave at Hierapolis, believed to be an entrance to the underworld and associated with the god Pluto/Hades.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.