The average life of an isolated neutrons is

The average life of a radioactive sample is 2 years. Its half-life in years is

The average life of a radioactive element is ............. of the decay constant.

The half-life is related to the decay constant by the relation. T_(1//2) = (0.693)/lambda The average life of a sample is expressed by the relation tau = 1/lambda The average life and half-life are related as