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A radioactive isotope has a half-life of...

A radioactive isotope has a half-life of 10 day. If today there are 125 g of left, what was the original mass 40 day earlier?

A

600 g

B

1000 g

C

1250 g

D

2000 g

Text Solution

Verified by Experts

The correct Answer is:
d
`125=N""_(0)/16,N""_(0)=2000 " grams"`
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