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Physics (AS & A Level) · May / June 2017 · Paper 11 · Question 39

9702Atoms, nuclei and radiation

A radioactive nucleus is formed by β– decay. This nucleus then decays by α-emission. Which graph of nucleon number N plotted against proton number Z shows the β– decay followed by the α-emission?

  1. Agraph A
  2. Bgraph B
  3. Cgraph C
  4. Dgraph D

As printed in the paper

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Correct answer: B. graph B

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