Chemistry, 12.10.2020 20:01 cassidyschmuzler
Carbon-11 is a radioactive isotope of carbon. Its half-life is 20 minutes. What amount of the initial mass of 70.0g of C-11 atoms in a sample will be left after 80 minutes?
a)5.68 g
b)4.38 g
c)4.20 g
d)3.96 g
e)50.00 g
Answers: 2
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Carbon-11 is a radioactive isotope of carbon. Its half-life is 20 minutes. What amount of the initia...
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