the half-life of bismuth-210 is 5 days. if 25 grams of bismuth-210 are present initially, how much will remain after 10 days?

asked Jun 22, 2019 90.1k views

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by Rinke

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10 days is twice the half-life. After 5 days, can expect
$\frac{25}2$ grams to remain; after another 5 days, you'd be left with
$\frac{25}4$ grams.

Jane Courtney answered Jun 27, 2019

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