1. Noun
Atoms of the same element with different numbers of neutrons
2. Noun
A version of an element with a different number of neutrons.
A form of an element whose atoms have the same proton number but different neutron numbers.
“Carbon-14 is a radioactive isotope.”
3. Noun
one of two or more atoms with the same atomic number but with different numbers of neutrons
Vocabulary classified under Physics
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