Gadolinium-153, which is used to detect osteoporosis, has a half-life of 242 days. Which value is cl — Kinetics Chemistry Question
Question
Gadolinium-153, which is used to detect osteoporosis, has a half-life of 242 days. Which value is closest to the percentage of the Gd-153 left in a patient's system after 2 years (730 days)?
A.
33.0 %
B.
25.0 %
C.✓ Correct
12.5 %
D.
6.25 %
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