(a) Natural potassium contains 40K , which has a halflife of 1.277 X 09 y. What mass of 40K in a person would have a decay rate of 4140 Bq? (b) What is thefraction of 40K in natural potassium, given that the person has 140 g in his body? (These numbers are typical for a 70-kg adult.)
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(a) Natural potassium contains 40K , which has a halflife of 1.277 X 09 y. What mass of 40K in a person would have a decay rate of 4140 Bq? (b) What is the
fraction of 40K in natural potassium, given that the person has 140 g in his body? (These numbers are typical for a 70-kg adult.)
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