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11 votes
If a sample contains 100g of a radioactive isotope, how much will be left after 3
half-lives?

User Varunkr
by
3.6k points

2 Answers

7 votes
6.25 grams is ur answer
User Shanera
by
3.2k points
7 votes

6.25 grams would be your answer b/c as you divide into 3 and as the 3 half lives, I would simplify that also which would give me 6.25

User Gwynn
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3.4k points