A mix of two isotopes, one of them from Table 38.1, is observed over a period of 15
Chapter 38, Problem 82(choose chapter or problem)
A mix of two isotopes, one of them from Table 38.1, is observed over a period of 15 days, and the total radioactivity is tabulated below. Determine a quantity that, when plotted against time, should yield one or more straight lines. Make your plot and use it to determine the half-lives of the isotopes. Identify the isotope from Table 38.1. Time (days) 0 0.25 0.5 0.75 1.0 Activity (kBq) 200 103 54 29 17 Time (days) 1.3 5.0 10 15 Activity (kBq) 4.6 3.2 2.1 1.4
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