20 years is 4 half-lives, so there would be
300 * (1/2)^4
Cobalt-60 has a half-life of about 5 years. How many grams of a 300 g sample will remain after 20 years?
(Points : 1)
2 answers
jhb
(Points : 1)
2 answers
1 answer
1 answer
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