1. ## finding the half life of a radioactive element

Hi,

Find the half-life of a radioactive element that decays according to the rule:
dA
dt = −0.012 A
where A is the amount in kg present after t years.

I know the equation is A=A0e^(-0.012t), but how do you find the half life?

2. Originally Posted by [nuthing]
Hi,

Find the half-life of a radioactive element that decays according to the rule:
dA
dt = −0.012 A
where A is the amount in kg present after t years.

I know the equation is A=A0e^(-0.012t), but how do you find the half life?