Physics 0625 · IGCSE · The nuclear model of the atom

The nuclear model of the atom — practice question

Atoms of an element may occur as different isotopes. In what way do atoms of different isotopes of the same element differ?

  • AThey have different numbers of electrons.
  • BThey have different numbers of protons and different numbers of neutrons.
  • CThey have different numbers of protons only.
  • DThey have different numbers of neutrons only.

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