After 3 days a sample of radon-222 decayed to 58% of its original amount. (a) What is
Chapter 9, Problem 10(choose chapter or problem)
After 3 days a sample of radon-222 decayed to 58% of its original amount. (a) What is the half-life of radon-222? (b) How long would it take the sample to decay to 10% of its original amount?
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