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How much of a 80 g sample of 1-131 atoms will remain after 3 half lives?
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How much of a 80 g sample of 1-131 atoms will remain after 3 half lives?
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How much of a 80 g sample of 1-131 atoms will remain after 3 half lives? g

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How much of a 80 g sample of 1-131 atoms will remain after 3 half lives?
g