131I has a radioactive half-life of 7.80 days, but iodine is also removed from the body by excretion at a first-order rate characterized by a "biological half-life" of 26 days.
a. What will be the "effective half-life" of 131I in the body (the time required for half of the 131I to be removed by the combination of excretion and radioactive decay)?
b. A laboratory animal injected with 131I should not be reinjected with that isotope for 2 months. Using the result of part (a), explain why this should be so.
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.