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What time does the half-life of a radioactive sample refer to? The time for the

waelhammad
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2022-10-21
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What time does the half-life of a radioactive sample refer to? The time for the

  1. activity to halve
  2. count rate to double
  3. parent nuclei to decay
  4. number of nuclei to halve
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waelhammad
2022-10-21
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A: This is the best answer, although the daughter nuclei may themselves also be radioactive and so contribute to the radioactivity of the sample. When a nucleus decays, it (or the daughter nucleus) is still there, so choice D is wrong.

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