Atomic number and mass number

1 mark · Normal

Which statement about isotopes is correct?

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Correct option: Isotopes have the same number of protons but different numbers of neutrons.

Common mistakes: Choosing different numbers of protons or electrons

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Marking points

B1 · 1 mark · Selects correct option: Isotopes have the same number of protons but different numbers of neutrons.

Worked solution

Isotopes have the same number of protons but different numbers of neutrons.