How an element can decay all the way to zero, when it has a “half-life”

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I’m sure there is an easy answer to this, but for some reason I can’t wrap my head around how a sample of an element can ever decay all the way to zero, when measured in half lives. It seems like you could always split a number in half, it would just be infinitesimally small.

In: Chemistry

8 Answers

Anonymous 0 Comments

The half life is random event for each atom, and if you had say a million atoms and a very long half life then it would be unlikely ever to decay to a perfect zero, but then also it would not be radioactive since the remaining atoms wouldn’t be decaying. https://youtu.be/AaDwk8UCrew

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