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Topic 6: Radioactivity
Quick questions on Half-life - Edexcel GCSE Physics
2short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is q1?Show answer
Define the half-life of a radioactive isotope. [1 mark]
What is q2?Show answer
A sample has an activity of and a half-life of 3 hours. Calculate its activity after 6 hours. [2 marks]
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