If the rate of an isotope in 18 days has dropped by one eight of its initial value. what is the half life of the isotope?(adsbygoogle = window.adsbygoogle || []).push({});

My answer

In 18 days the rate has dropped by 1/8 so therefore the half life is 4/8 which is 18*4 = 72days

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# Homework Help: Half life

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