Chemistry, 22.04.2020 01:15 GreenHerbz206
A sample of a radioactive isotope initially contains 20 x 10^10 atoms. After 16 days, 5 x 10^10 atoms remain. what is the half-life of the isotope?
A)12 days
B)20 days
C)10 days
D)16 days
E)8 days
Answers: 1
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