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The half-life of a radio isotope is four...

The half-life of a radio isotope is four hours. If the initial mass of the isotope was 200 g , the un-decayed mass remaining after 24 hours is :

A

3.125 g

B

2.084 g

C

1.042 g

D

4.167 g

Text Solution

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The correct Answer is:
A
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