The `t_(0.5)` of a radioactive element is related to its average life by the expression

What parts of a radioactive element is disintegrated in its average life period?

Half-life of a radioactive element is T_(1//2) and its average life is tau . Write down the relation between them.

How is the half life of a radioactive substance related to its average life?

Mean life of a radioactive element is one year. Then its half life is (in year)