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The half - liofe of ^(131) 1 is days Giv...

The half - liofe of` ^(131) 1 `is days Given a sample of`^(131) 1` at time `t = 0` , we get that

A

no nucleus will decay `t = 4 days`

B

no nucleus will decay `t = 8 days`

C

no nucleus will decay `t = 16 days`

D

a given nucleus may dacay at any time after `t = 0`

Text Solution

Verified by Experts

The correct Answer is:
D
The result follow from the formula based on have of radioactive decay `N = N_(0)e^(- lambda1)`
The nucleus start after time `1 = 0`
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