Iodine-131 Undergoes Beta Emission with a Half-Life of 8

question 124

Multiple Choice

Iodine-131 undergoes beta emission with a half-life of 8.02 days.If you start with 44.3 mg of the material,how long will it take for the amount of iodine-131 to drop to 15.3 mg?

• A) 8.02 days
• B) 12.3 days
• C) 23.5 days
• D) 10.8 days
• E) 19.8 days

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