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6.3 Nuclear equations and decay

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Question 7

Sodium-24 is a radioactive isotope with a half-life of 15 hours.

An experimental sample containing sodium-24 is monitored, and its activity is found to decrease from 2400 Bq to 300 Bq.

Determine the time over which this decrease in activity occurred.

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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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