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22) Iodine-123, used in thyroid therapy, has a half-life of 13.27 hours. Iodine-123 decays via a firstorder process by electron capture to give tellurium-123 and a gamma particle. a) Provide the value of the rate constant for this decay. b) How many hours are required for a 160 mg sample of iodine-123 to decay to 40 mg?

22) Iodine-123, used in thyroid therapy, has a half-life of 13.27 hours. Iodine-123 decays via a firstorder process by electron capture to give tellurium-123 and a gamma particle. a) Provide the value of the rate constant for this decay. b) How many hours are required for a 160 mg sample of iodine-123 to decay to 40 mg?

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
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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22) Iodine-123, used in thyroid therapy, has a half-life of 13.27 hours. Iodine-123 decays via a firstorder process by electron capture to give tellurium-123 and a gamma particle. a) Provide the value of the rate constant for this decay. b) How many hours are required for a 160 mg sample of iodine-123 to decay to 40 mg?
Transcribed Image Text:22) Iodine-123, used in thyroid therapy, has a half-life of 13.27 hours. Iodine-123 decays via a firstorder process by electron capture to give tellurium-123 and a gamma particle. a) Provide the value of the rate constant for this decay. b) How many hours are required for a 160 mg sample of iodine-123 to decay to 40 mg?
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