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Physics (AS & A Level) · May / June 2024 · Paper 12 · Question 37

9702Atoms, nuclei and radiation

Nuclide X with proton number Z undergoes β+ decay to form nuclide Y. The decay may be represented by the equation shown. X → Y + β+ + W What is the proton number of Y and which particle is represented by the symbol W?

  1. AZ – 1 antineutrino
  2. BZ – 1 neutrino
  3. CZ + 1 antineutrino
  4. DZ + 1 neutrino

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Correct answer: B. Z – 1 neutrino

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