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# Decay

APPH12-48SJYM

Which of the following best describes the half-life of a radioactive sample?

A

Half the time it takes for the sample to completely decay.

B

The time it takes to reduce the number of nuclei in the sample to half of the original value.

C

Half the time needed to produce double the original number of nuclei in the sample.

D

The full time needed to produce double the original number of nuclei in the sample.