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The half - life of I^(131) is 8 days. Gi...

The half - life of `I^(131)` is 8 days. Given a sample of `I^(131)` at time `t = 0` , we can assert that

A

No nucleus will decay before t=4 days

B

No nucleus will decay before t=8 days

C

All nuclei will decay before t=16 days

D

A given nucleus may decay at t=0

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The correct Answer is:
D
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