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6.3 Nuclear equations and decay

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Question 48

A radioactive nucleus has mass number 39 and atomic number 17. It emits one neutron. The daughter nucleus then undergoes beta-minus decay.

a.

State the mass number and atomic number of the nucleus after both decays.

[2]
b.

Explain the changes in mass number and atomic number during the two decays.

[4]
Markscheme

6.3 Nuclear equations and decay Questions

  1. GCSE
  2. /Physics
  3. /6.3 Nuclear equations and decay

120 exam-style questions on Edexcel GCSE Physics 6.3 Nuclear equations and decay, covering 6.3.1 Beta-minus and beta-plus decay, 6.3.2 Effects of decay on the nucleus, and 6.3.3 Balancing nuclear equations. Each one has a worked solution and a mark scheme showing where the marks go.

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