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Biology, 16.12.2020 02:10 ayoismeisalex

I need help please & show work?? Hydrogen - 3 is a radioisotope with a half life of 12.32 years. How long would it take a 40 g sample to decay down 2.5 g ?

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I need help please & show work?? Hydrogen - 3 is a radioisotope with a half life of 12.32 years...
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