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6.3 Nuclear equations and decay

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Question 47

One radioactive isotope used in medical imaging and thyroid cancer treatment is iodine-131 (I).

Iodine-131 decays by emitting a beta particle (β\betaβ) to form xenon (Xe).

Complete the following nuclear equation by writing the correct numbers in the box.

53131I→0000Xe+−10β {}_{53}^{131}\text{I} \rightarrow \boxed{\phantom{{}_{00}^{00}}}\text{Xe} + {}_{-1}^{0}\beta 53131​I→0000​​Xe+−10​β
[1]
Markscheme

6.3 Nuclear equations and decay Questions

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

90 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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