Before the use of technetium-99m, patients with high risk coronary artery disease were evaluated using thallium-201 which has a half-life of 73.00 hours. If a person is exposed to 5.000 μg of thallium-201, how many hours would it take to reach 10.00 % of its original mass? 3.322 hours 242.5 hours 21.98 hours

Chemistry
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Chapter1: Chemical Foundations
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Before the use of technetium-99m, patients with high risk coronary artery disease were
evaluated using thallium-201 which has a half-life of 73.00 hours. If a person is exposed to
5.000 μg of thallium-201, how many hours would it take to reach 10.00 % of its original
mass?
3.322 hours
242.5 hours
21.98 hours
Transcribed Image Text:Before the use of technetium-99m, patients with high risk coronary artery disease were evaluated using thallium-201 which has a half-life of 73.00 hours. If a person is exposed to 5.000 μg of thallium-201, how many hours would it take to reach 10.00 % of its original mass? 3.322 hours 242.5 hours 21.98 hours
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