Mlopez14
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Q: Approximately how long would it take a radioactive substance with a half-life of 30 years and an activity of 5.2e13 Bq to decay to a level similar to that of a typical banana.
A typical banana having a half-life of 1.25e9 years and radioactivity of 15 Bq.
I am confident I know the materials here but I am not too sure on what the question is asking of me.
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loubielou123
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I think it is asking how long it would take to decay to an activity of 15Bq
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