Cobalt-60, which undergoes beta decay, has a half-life of
Chapter , Problem 21.40(choose chapter or problem)
Cobalt-60, which undergoes beta decay, has a half-life of 5.26 yr. (a) How many beta particles are emitted in 600 s by a 3.75-mg sample of 60 Co? (b) What is the activity of the sample in Bq?
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