copernicium
E1206385
UNEXPLORED
Copernicium is a synthetic, highly radioactive superheavy chemical element with the symbol Cn and atomic number 112, named after astronomer Nicolaus Copernicus.
All labels observed (1)
| Label | Occurrences |
|---|---|
| copernicium canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T16312713 — 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: copernicium Context triple: [nihonium, neighborElementPrevious, copernicium]
-
A.
seaborgium
Seaborgium is a synthetic, highly radioactive transition metal and transactinide element with the symbol Sg and atomic number 106.
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B.
dubnium
Dubnium is a synthetic, highly radioactive transactinide chemical element with atomic number 105, named after the Russian research town of Dubna where it was first studied.
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C.
mendelevium
Mendelevium is a synthetic, radioactive actinide element with atomic number 101, named after Dmitri Mendeleev and produced only in particle accelerators.
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D.
Fermium
Fermium is a synthetic, highly radioactive actinide metal with atomic number 100, first identified in the debris of the first hydrogen bomb test and named in honor of physicist Enrico Fermi.
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E.
element meitnerium
Meitnerium is a synthetic, highly radioactive chemical element with atomic number 109, named in honor of physicist Lise Meitner.
- 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: copernicium Target entity description: Copernicium is a synthetic, highly radioactive superheavy chemical element with the symbol Cn and atomic number 112, named after astronomer Nicolaus Copernicus.
-
A.
seaborgium
Seaborgium is a synthetic, highly radioactive transition metal and transactinide element with the symbol Sg and atomic number 106.
-
B.
dubnium
Dubnium is a synthetic, highly radioactive transactinide chemical element with atomic number 105, named after the Russian research town of Dubna where it was first studied.
-
C.
mendelevium
Mendelevium is a synthetic, radioactive actinide element with atomic number 101, named after Dmitri Mendeleev and produced only in particle accelerators.
-
D.
Fermium
Fermium is a synthetic, highly radioactive actinide metal with atomic number 100, first identified in the debris of the first hydrogen bomb test and named in honor of physicist Enrico Fermi.
-
E.
element meitnerium
Meitnerium is a synthetic, highly radioactive chemical element with atomic number 109, named in honor of physicist Lise Meitner.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
nihonium