One half of the total activity in a particular sample is due to 38et (cll2 = 87.2
Chapter 32, Problem 32-10(choose chapter or problem)
One half of the total activity in a particular sample is due to 38et (cll2 = 87.2 min).The other half of the activity is due to "S (e1l2 = 37.5 days). The beta emission of"s must be measured because this nuclide emits no gamma photons. Therefore, itis desirable to wait until the activity of the 38et has decreased to a negligible level.How much time must elapse before the activity of the 38CIhas decreased to only0.1 % of the remaining activity because of "S"
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