AaronPablosOsorio AaronPablosOsorio

12-12-2019
Chemistry

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How many half-lives have passed when there are 3 times as much daughter isotope as parent isotope?

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PollyP52 PollyP52

12-12-2019

Answer:

2 half lives.

Explanation:

Suppose there are 100g of parent isotope at the start.

After 1 half-life there will be 50g of parent and 50g of daughter isotope.

After another half life there is 25 g of parent and 75g of daughter isotope.

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