Question: Half life of $Bi^{210}$ is 5 days. If we start with 50,000 atoms of this isotope, the number of at...

Question

Half life of $Bi^{210}$ is 5 days. If we start with 50,000 atoms of this isotope, the number of atoms left over after 10 days is.

Answer 1

$N_{t} = N_{0}\left( \frac{1}{2} \right)^{t/T} = 50000\left( \frac{1}{2} \right)^{10/5} = 12500$

Question: Half life of \(Bi^{210}\) is 5 days. If we start with 50,000 atoms of this isotope, the number of at...