sanelmarkisic sanelmarkisic

20-06-2018
Chemistry

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The half-life of 131I is 8.021 days.What fraction of a sample of 131I remains after 24.063 days

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JoannaBlackwelder JoannaBlackwelder

20-06-2018

24.063/8.021 = 3 half lives
(1/2)^3 =1/8

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