The half-life for the radioactive decay of calcium-47 is 4.5 days. If a sample has an
Chapter 0, Problem 5.79(choose chapter or problem)
The half-life for the radioactive decay of calcium-47 is 4.5 days. If a sample has an activity of 1.0 mCi after 27 days, what was the initial activity, in microcuries, of the sample? 15.3, 5.42
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