The half life of Radon is 3.8 days. Calculate how much of 15 milligram of Radon will remain after 38 days.

Explanation

the number of half-lives in 38 days is given by `n=(38)/(3.8)=10`
`N=N_0(1/2)^n`
`N=15(1/2)^(10)`
Solving we get , N=0.014 mg