Question

The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. Starting with 135grams of a radioactive isotope, how much will be left after
4half-lives?

Answer 1

Hi @amandaleonhardt , you would use an exponential decay equation to solve this problem. do you know how to set the problem up?

Answer 2

Hint: the equation looks like this:

\[P=p _{o}(1-r)^{\frac{ t }{ n }}\]