Physics

Physics

Problem

A radioactive isotope has a half-life of 24 days. A sample initially contains 80 grams. Approximately how many days will elapse before the mass decreases to 50 grams? a) 18 days18\text{ days} b) 11 days11\text{ days} c) 16 days16\text{ days} d) 15 days15\text{ days}

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