andres1998ar25p863f9 andres1998ar25p863f9

03-05-2018
Mathematics

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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?

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LammettHash LammettHash

03-05-2018

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

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