Physics 5054 · O Level · The nucleus

The nucleus — practice question

Which statement about two 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.

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