Physics, 25.10.2019 18:43 shires24

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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What is a half-life?
the amount of time it takes for half of a radioactive substance to deca...