Question

a certain radioactive element has a half-life of 2 months
if you begin with 50g and you return 10 months later, how much element A will remain? Use a table showing number of months and amount remaining:

Answer 1

0 month 50g
2 months 25g
4 months 12.5g
etc etc you can fill in the rest :)

Answer 2

what about the equation to determine how much will remain 2 years later?

Answer 3

\[A(t)=A_0\cdot 2^{t/2[\text {mo}]}\]