What is the probability of a radioactive nucleus to survive one mean life?

Find the probability of survival of a radioactive nucleus for one mean life

If the rate constant for the disintegration of a radioactive nucleus is lambda . Therefore the probability, P of survival of a radioactive nucleus for one mean life is

What is the probability that a radioactive atom having a mean life of 10 days decays during the fifth day?

What is the probability that a radioactive atom having a mean life of 10 days decays during the fifth day?

What is the probability that is radioactive atom having a mean life of 10 days decays during the fifth day?

What is mean life of a radioactive element?

If the half-life of a radioactive sample is 10 hours its mean life is

If the half-life of a radioactive sample is 10 hours its mean life is