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You started with 64 g of a radioactive substance. If you have 4.0 g of that substance left, then how many half-lives have elapsed? a. 2 b. 3 c. 4 d. 5
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You started with 64 g of a radioactive substance. If you have 4.0 g of that substance left, then how many half-lives have elapsed?

a. 2
b. 3
c. 4
d. 5

User Dmitro
by
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1 Answer

6 votes
4 half lives have elapsed
User Lcoq
by
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