Question & Answer: The half-life of iodine-131 (^131 I) is approximately 8 days. How many days are required for a…..

6. The half-life of iodine-131 (3ID is approximately 8 days. How many days are required for a 20-milligram (mg) sample of this radioisotope to decrease to 1.25 mg? O A 16 O B. 24 O C. 32 O D. 128

The half-life of iodine-131 (^131 I) is approximately 8 days. How many days are required for a 20-milligram (mg) sample of this radioisotope to decrease to 1.25 mg? A. 16 B. 24 C. 32 D. 128

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