SOLUTION: A radioactive isotope has a decay rate of 2% per year. Calculate the half-life for this isotope, using the exact half-life formula.

Algebra ->  Graphs -> SOLUTION: A radioactive isotope has a decay rate of 2% per year. Calculate the half-life for this isotope, using the exact half-life formula.      Log On


   



Question 1033843: A radioactive isotope has a decay rate of 2% per year. Calculate the half-life for this isotope, using the exact half-life formula.
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!

=====================
N(t)=Noe^(-Lt)
(1/2)=e^(-.02t)
ln both sides
-ln2=-.02t
ln 2=.02t
ln2/.02=34.66 years