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Asked by jake

what fraction of an original sample of a radioactive isotope remains after three half-lives have passed?
1/8?
13 years ago

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Answered by DrBob222
2^3 = 8; therefore you will have 1/8 of the original.
13 years ago
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what fraction of an original sample of a radioactive isotope remains after three half-lives have passed?
1/8?

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