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1311, used to treat thyroid cancer, has a first order half-life of 6.99 × 105 s. How long does it take for the amount of isotope in a dose to decay to 19.0% of its initial value? 1.68 x 106 s 9.24 × 105 s 2.23 × 105 s 2.90 × 105 s

1311, used to treat thyroid cancer, has a first order half-life of 6.99 × 105 s. How long does it take for the amount of isotope in a dose to decay to 19.0% of its initial value? 1.68 x 106 s 9.24 × 105 s 2.23 × 105 s 2.90 × 105 s

Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter11: Rate Of Reaction
Section: Chapter Questions
Problem 45QAP: Iodine-131 is used to treat tumors in the thyroid. Its decomposition is first-order with a half-life...
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1311, used to treat thyroid cancer, has a first order half-life of 6.99 × 105 s. How long does it take for the amount of isotope in a dose to decay to 19.0% of its initial value? 1.68 x 106 s 9.24 x 105 s 2.23 × 105 s 2.90 × 105 s
Transcribed Image Text:1311, used to treat thyroid cancer, has a first order half-life of 6.99 × 105 s. How long does it take for the amount of isotope in a dose to decay to 19.0% of its initial value? 1.68 x 106 s 9.24 x 105 s 2.23 × 105 s 2.90 × 105 s
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