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What Is a Half-Life

Question 89

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What is a half-life?


A) It is the time it takes for 1/2 of the material to undergo radiodecay.
B) It is the time needed until 1/2 of the radiation is gone.
C) It is the time it takes for 1/2 of the material to decompose.
D) It is half of the lifetime of the radioactivity in a sample.
E) all of the above

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