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If you have 1000g of radioactive waste with a half life of 50 million years what amount will you have left after 200 million years?

If you have 1000g of radioactive waste with a half life of 50 million years what amount will you have left after 200 million years?
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3 votes
if you have 1000g of radioactive waste with a half life of 50 million years what amount will you have left after 200 million years?

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User Smruti Ranjan
by
8.9k points

1 Answer

5 votes
You will have 62.5 grams

1000g at 0 years
500g at 50mill
250g at 100mill
125g at 150 mil
62.5g at 200mill
answered
User Jason Roselander
by
7.7k points
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