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What does the term half-life refer to in radioa... - SS2 Physics Modern Physics - Nuclear Physics Question

What does the term "half-life" refer to in radioactive decay?

A

The time it takes for half of the radioactive sample to decay.

 

B

The time it takes for all the radioactive atoms to decay.

 

 

C

The time it takes for the radioactive decay to double.

 

D

The time it takes for the radioactive decay to halve.

correct option: a
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