(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A sample of radioactive isotopes contains two different nuclides, labeled A and B. Initially, the sample composition is 1:1, i.e., the same number of nuclei A as nuclei B. The half-life of A is 2 hours and, that of B, 4 hours. What is the expected ratio A/B after 8 hours?

2. Relevant equations

3. The attempt a solution

I know the number of nuclei decreases by a factor of 2 for each half life elapsed, but not sure how to go about this problem...

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# Homework Help: Isotope Ratio Problem Help!

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