Multiple Choice
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?
A) 3.322 hours
B) 242.5 hours
C) 21.98 hours
Correct Answer:
Verified
Correct Answer:
Verified
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