Carbon-12 and carbon-14 are isotopes of carbon. Which statement correctly describes isotopes?

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Question

Carbon-12 and carbon-14 are isotopes of carbon. Which statement correctly describes isotopes?

Accepted Answer

Atoms with the same number of protons but different numbers of neutrons — Award 1 mark for the correct definition of isotopes. A is incorrect — this reverses the definition. C is incorrect — isotopes are defined by nuclear composition, not electron number alone. D is incorrect — isotopes of the same element always have the same number of protons.

Answer

Atoms with the same number of electrons but different numbers of protons

Answer

Atoms with different numbers of protons and different numbers of electrons

Answer

Atoms with the same number of neutrons but different numbers of protons

Answer

Atoms with the same number of protons but different numbers of neutrons

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