The half-life of 27Mg is 9.50 min. (a) Initially there
Chapter 20, Problem 98AP(choose chapter or problem)
The half-life of 27Mg is 9.50 min. (a) Initially there were 4.20 × 101227Mg nuclei present. How many 27Mg nuclei arc left 30.0 min later? (b) Calculate the rMg activities (in Ci) at t = 0 and t = 30.0 min. (c) What is the probability that any oik 27Mg nucleus decays during a l-s interval? What assumption is made in this calculation?
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