Blairm2167 Blairm2167

08-03-2024
Chemistry

contestada

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) 32
c) 1.0
d) 5.0

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