Chemistry, 12.10.2019 05:30 damientran
Barium-131 is a radioactive isotope of the element barium used for gastrointestinal tract scans in doctors offices. barium-131 has a half-life of 10 days. if a patient drinks 2 grams of barium-131 how much of the isotope will be left after 10 days?
a) 0.125 grams b) 0.25 grams c) 0.5 grams d) 1 gram
Answers: 1
![\log N=\log [2]-\frac{0.0693 day^{-1}\times 10 days}{2.303}](/tpl/images/0312/3603/71378.png)
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