What is a half-life?
A. the amount of time it takes for 25% of a radioactive isotope sample to decay
B. half of the time it takes for an organism to die
C. the amount of time it takes for a radioactive isotope to become stable
D. the amount of time it takes for half of a radioactive isotope sample to decay
Answers: 1
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What is a half-life?
A. the amount of time it takes for 25% of a radioactive isotope sample to deca...
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