4.4.2.3 Half-lives and the random nature of radioactive decay
Aims:
To understand that the activity of a radioactive source decreases over a period of time and is measured in becquerels.
To recall the term ‘half-life’ and understand that it is different for different radioactive isotopes.
To use the concept of half-life to carry out simple calculations on activity.
past exam question and answers at the end of the ppt
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