Recent content by Kynaston

Last question, For real life application (eg: age of a rock), if the quantity of remaining nuclei, N is very small, will this nuclei still be useful?

How about the probability? The 1/6? And what is the difference between dependent and independent half-life?

I don't know how to solve the questions that my lecturer gave me. I not understand about probability of half life. Can anyone explain to me and help me solve the questions as well? My lecturer ask us to prove the probability as shown in the picture.