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19 February, 22:32

What is a half-life?

the amount of time it takes for half of a radioactive substance to decay the amount of time it takes for all of a radioactive substance to decay

half the time it takes for a radioactive substance to break down

the reactive half of a radioactive substance

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  1. 20 February, 02:18
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    The time taken for a radioactive substance to decay by half
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