O-LevelPhysicsNuclear Physics5054/12 · Oct/Nov 2018 · Q401 Mark

Which statement about two different isotopes of the same element is correct?

ABoth isotopes have the same number of electrons in a nucleus.

BBoth isotopes have the same number of protons in a nucleus.

CBoth isotopes have the same number of neutrons in a nucleus.

DBoth isotopes have the same number of nucleons in a nucleus.

✓ Correct answer

B: Both isotopes have the same number of protons in a nucleus.

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Topic: Nuclear Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2018 Paper 1 Variant 2, question 40.

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