Question: (a) What is the decay constant of 238/92U whose half-life is 4.5 X 109 yr? (b) The decay constant of a given nucleus is 8.2

(a) What is the decay constant of 238/92U whose half-life is 4.5 X 109 yr?
(b) The decay constant of a given nucleus is 8.2 X 10 –5 s –1. What is its half-life?

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