Chemistry, 12.03.2020 19:17 lilbloke

Iodine-131 is a radioactive isotope that is used to diagnose and treat some forms of thyroid cancer. Iodine-131 decays to xenon-131 according to the equation: I-131⟶Xe-131+electron The decay is first-order with a rate constant of 0.138 d−1. How many days will it take for 90% of the iodine−131 in a 0.500 M solution of this substance to decay to Xe-131?

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Iodine-131 is a radioactive isotope that is used to diagnose and treat some forms of thyroid cancer....