Yep, once you know the half life, you can use that figure to work out the mean lifetime: the average time you’d expect to be looking at once nucleus before it decays. It works out to be 1.4x the half life of the material. You’re right though, it is random, and you could be waiting three nanoseconds or three million years.
Yep, once you know the half life, you can use that figure to work out the mean lifetime: the average time you’d expect to be looking at once nucleus before it decays. It works out to be 1.4x the half life of the material. You’re right though, it is random, and you could be waiting three nanoseconds or three million years.