Physics 9702 · AS & A Level · Atoms, nuclei and radiation

Atoms, nuclei and radiation — practice question

A magnesium nucleus $^{23}_{12}\text{Mg}$ undergoes decay, releasing two particles. The daughter nucleus is sodium $^{23}_{11}\text{Na}$. Which two particles are released?

  • A$\alpha$-particle, antineutrino
  • B$\beta^{+}$ particle, antineutrino
  • C$\beta^{-}$ particle, neutrino
  • D$\beta^{+}$ particle, neutrino

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