The half-life of iodine-123 is 13 hours. How much of a 12 mg sample is still active after 39 hours 6.0 mg 3.0 mg 1.5 mg
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The half-life of iodine-123 is 13 hours. How much of a 12 mg sample is still active after 39 hours 6.0 mg 3.0 mg 1.5 mg
The half-life of iodine-123 is 13 hours. How much of a 12 mg sample is still active after 39 hours 6.0 mg 3.0 mg 1.5 mg 4.0 mg
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