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?

How many atoms of 0.1 g -atom of a radioactive isotope ._(Z)X^(A) (half = 5 days) will decay during the 11th day?

Half-life of a radioactive sample is 200 days. Its decay constant is

A radioactive substance has 0.1 gm at a particular instant and has an average life of 1 day . The mass of the substance which decays during the 4th day is give by :

A certain radioactive element has half-life of 4 days. The fraction of material that decays in 2 days is

A certain radioactive element has half-life of 4 days. The fraction of material that decays in 2 days is

The half-life of a radioactive substance is 10 days. This means that

(3/4) of a radioactive sample decays in 2.5 days. The half life in days is