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How many grams of the parent isotope are left in the sample after three half lives?

How many grams of the parent isotope are left in the sample after three half lives?
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How many grams of the parent isotope are left in the sample after three half lives?

User Andrei Orlov
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1 Answer

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After 3 half-lives, 125 grams of the parent isotope will remain.
User Ben McCormick
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