The half-life of a radioactive element is 5.0 days. A freshly-prepared sample contains 128 g of this element. After how many days will there be 16 g of this element left behind in the sample?
do we use N= 1/2T
do we use N= 1/2T
1 Answer
Apr 27, 2018
15 days
Explanation:
Decreasing from 128 g to 16 g is a decrease by a factor of
