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QUESTION 20 Iron-59 is a radioactive nuclide (t1/2 = 46 d) used in anemia diagnosis. If the initial count rate of an °Fe sample is 560 counts/min., how long will it take (days) for the count to drop to 400 counts/min.? Enter your answer in decimal format with one decimal place (value 29%).

QUESTION 20 Iron-59 is a radioactive nuclide (t1/2 = 46 d) used in anemia diagnosis. If the initial count rate of an °Fe sample is 560 counts/min., how long will it take (days) for the count to drop to 400 counts/min.? Enter your answer in decimal format with one decimal place (value 29%).

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter19: The Nucleus: A Chemist's View
Section: Chapter Questions
Problem 89CP
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QUESTION 20 Iron-59 is a radioactive nuclide (t1/2 = 46 d) used in anemia diagnosis. If the initial count rate of an Fe sample is 560 counts/min., how long will it take (days) for the count to drop to 400 counts/min ? %3D Enter your answer in decimal format with one decimal place (value ± 296).
Transcribed Image Text:QUESTION 20 Iron-59 is a radioactive nuclide (t1/2 = 46 d) used in anemia diagnosis. If the initial count rate of an Fe sample is 560 counts/min., how long will it take (days) for the count to drop to 400 counts/min ? %3D Enter your answer in decimal format with one decimal place (value ± 296).
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