Strontium-90 is a hazardous radioactive isotope that resulted from atmospheric testing of nuclear weapons. A sample of
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Strontium-90 is a hazardous radioactive isotope that resulted from atmospheric testing of nuclear weapons. A sample of strontium carbonate containing 90Sr is found to have an activity of 1.0 × 103 dpm. One year later, the activity of this sample is 975 dpm.
(a) Calculate the half-life of strontium-90 from this information.
(b) How long will it take for the activity of this sample to drop to 1.0% of the initial value?
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Related Book For 
Chemistry And Chemical Reactivity
ISBN: 9780357001172
10th Edition
Authors: John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
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