The half-life of oxygen-15 is 124 s. If a sample of oxygen-15 has an activity of 4000
Chapter 0, Problem 5.68(choose chapter or problem)
The half-life of oxygen-15 is 124 s. If a sample of oxygen-15 has an activity of 4000 Bq, how many minutes will elapse before it has an activity of 500 Bq? 15.42
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