The half-life for the radioactive decay of Ce-141 is 32.5 days. If a sample has an
Chapter 0, Problem 5.80(choose chapter or problem)
The half-life for the radioactive decay of Ce-141 is 32.5 days. If a sample has an activity of 4.0 \(\mu \mathrm{Ci}\) after 130 days have elapsed, what was the initial activity, in microcuries, of the sample? (5.3, 5.4)
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