Question

The half-life of Iodine-123 is about . You begin with of Iodine-123. Find a formula for , the amount 5 of Iodine-123 (in mg) remaining after hours. Your answer should be in the form A(t)=...

Answer 1

To find the amount of Iodine-123 remaining after a certain time, use the formula A(t) = A0 * (1/2)^(t/h), where A(t) is the amount remaining after time t, A0 is the initial amount, and h is the half-life.

Step-by-step explanation:

To find the amount of Iodine-123 remaining after a certain time, we can use the formula for exponential decay. The formula is given by A(t) = A0 * (1/2)^(t/h), where A(t) is the amount remaining after time t, A0 is the initial amount, and h is the half-life. In this case, the half-life of Iodine-123 is 13.2 hours. So, the formula for the amount remaining after 5 hours would be A(5) = A0 * (1/2)^(5/13.2).