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Question
Iodine-123, used in thyroid therapy, has a half-life of 13.27 hours. How many half-lives are required for a 160 mg sample of iodine-123 to decay to 5.0 mg?A) 0.031
B) 1.0
C) 5.0
D) 32
Answer
This answer is hidden. It contains 1 characters.
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