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6.3 Nuclear equations and decay

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Question 36

Two successive nuclear changes occur. The letters P, Q and R label nuclei, and S labels an emitted particle.

88226P→Z1A1Q+24α {}^{226}_{88}\mathrm{P}\rightarrow{}^{A_1}_{Z_1}\mathrm{Q}+{}^{4}_{2}\alpha 88226​P→Z1​A1​​Q+24​α Z1A1Q→87222R+ZAS {}^{A_1}_{Z_1}\mathrm{Q}\rightarrow{}^{222}_{87}\mathrm{R}+{}^{A}_{Z}\mathrm{S} Z1​A1​​Q→87222​R+ZA​S
a.

Calculate the mass number, A1A_1A1​, and the charge number, Z1Z_1Z1​, of nucleus Q.

[2]
b.

Use your answer to calculate the mass number, AAA, and the charge number, ZZZ, of particle S. State the type of particle S.

[3]
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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