Physics 0625 · IGCSE · The nuclear model of the atom

The nuclear model of the atom — practice question

The symbol shows a zinc nucleus, $^{68}_{30}\mathrm{Zn}$. Which row shows the numbers of protons and neutrons in this nucleus?

  • A30 protons, 38 neutrons
  • B30 protons, 68 neutrons
  • C38 protons, 30 neutrons
  • D38 protons, 68 neutrons

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