Asked by tina
If 30% of a sample of radioactive isotope decays in 24 hrs, what is the half-life?
How do i know which order to use? and do I convert hr to mins or seconds?
Pls help for my exam tomorrrow
How do i know which order to use? and do I convert hr to mins or seconds?
Pls help for my exam tomorrrow
Answers
Answered by
DrBob222
ALL radioactive decay problems are first order so you use ln(No/N) = kt.
If you want the half life in hours, leave it as is. If you want it in min or seconds, then convert the 24 hours to some other unit. Since the problem doesn't specify, I would leave it as 24 hours.
If you want the half life in hours, leave it as is. If you want it in min or seconds, then convert the 24 hours to some other unit. Since the problem doesn't specify, I would leave it as 24 hours.
Answered by
Anonymous
In n=-kt +in,no
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.