juniormedina0331 juniormedina0331

18-05-2022
Chemistry

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the half life for strontium-90 is 29 years. how many half-lives did the sample go through at the end of 87 year

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spencercole05 spencercole05

18-05-2022

90 divided by 29 x 87 = 290

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indrawboy indrawboy

18-05-2022

= 87 : 29

= 3 half lives

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