Physics 0625 · IGCSE · The nuclear model of the atom

The nuclear model of the atom — practice question

The symbol shown below represents a nuclide. $^{9}_{4}\text{Be}$ Which row is correct?

  • Aproton number (Z) = 4, nucleon number (A) = 5
  • Bproton number (Z) = 4, nucleon number (A) = 9
  • Cproton number (Z) = 9, nucleon number (A) = 4
  • Dproton number (Z) = 9, nucleon number (A) = 5

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