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The human body contains 0.20% natural potassium. K-40 represents 0.0117% of naturally occurring potassium. 1. What...

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Chemistry

The human body contains 0.20% natural potassium. K-40 represents0.0117% of naturally occurring potassium. 1. What is theradioactivity due to K-40 for a person weighing 70 kg? 2. What isthe radioactivity due to K-40 for all people on Erath?

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Ans a natural potassium in a person 702100 1000 g 140 g K40 presents 14000117100 g 001638 g The potassium isotope is a radioactive isotope K40 It is present in all potassium at a very low concentration 00118 It has a very long halflife 1260000000 years When it decays 89 of the events give rise to the    See Answer
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