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How many half-lives have passed when there are three times as much daughter isotope as parent isotope?
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How many half-lives have passed when there are three times as much daughter isotope as parent isotope?

User Lars Andren
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1 Answer

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Answer:

2

Step-by-step explanation:

1/2=0.5

0.5/2=0.25

0.25:0.75=1:3

User Jonathan Beaudoin
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