Solved: A 200.0-mCi sample of a radioactive isotope is
Chapter 29, Problem 29.1(choose chapter or problem)
A 200.0-mCi sample of a radioactive isotope is purchased by a medical supply house. If the sample has a half-life of 14.0 days, how long will it keep before its activity is reduced to 20.0 mCi?
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