Multiple Choice
Iodine-131 has a half-life of 8.1 days and is used as a tracer for the thyroid gland.If a patient drinks a sodium iodide (NaI) solution containing iodine-131, how many days will it take for the concentration of iodine-131 to drop to 5.0% of its initial concentration?
A) 19 days
B) 0.81 day
C) 8.1 days
D) 35 days
E) 4.3 days
Correct Answer:
Verified
Correct Answer:
Verified
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