Physics 0625 · IGCSE · The nuclear model of the atom

The nuclear model of the atom — practice question

Four statements concerning the isotopes of a particular element are given. Which statement about the isotopes has to be correct?

  • AThey are radioactive.
  • BThey are unstable.
  • CThey have the same number of neutrons.
  • DThey have the same number of protons.

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