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23-08-2022
Chemistry

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Another radioisotope of iodine, ¹³¹I, is also used to study thyroid function (see Follow-up Problem 16.7A). A patient is given a sample that is 1.7x10⁻⁴ M ¹³¹I. If the half-life is 8.04 days, what fraction of the radioactivity remains after 30. days?

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