Ok so I'm doing this practise problem but I have no clue what to do.
"A radioactive sample intended for irradiation of a hospital patient is prepared
at a nearby lab. The sample has a half-life of 83.61 h. What should it's initial activity be if it's activity is to be 7.0 X 10 ^ 8 Bq when it is used to irradiate the patient for 24 h?
T 1/2 = Ln2/λ
N = N0e^λt
The Attempt at a Solution
Would you just do this?
N = 7.0 X 10 ^ 8 Bq e ^(83.61 - 24)