Asked by Anonymous

if the half life of a radioactive isotope is 80 hours how long would it take for 75% of the isotope to decay
Answered by oobleck
if 75% has decayed, 25% is left
1/4 = (1/2)^2
so it takes two half-lives, or 160 hours
There are no AI answers yet. The ability to request AI answers is coming soon!