Radioactive half-life
Lesson 11 / 12
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I can describe the random nature of radioactive decay and the predictability of radioactive half-life.
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Radioactive decay is a random process.
It is impossible to predict the moment that a particular unstable nucleus will decay.
It is possible to predict how long it will take for half of a sample of a radioactive isotope to decay.
Radioactive half-life is the time taken for half of a radioactive isotope to decay (or for its activity to halve).
Each radioactive isotope has its own half-life that is always the same.
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