If half life of an radioactive element is 20min. Find the time interval of 33% decay and 67%

Half-life period for radioactive element is

The half life of radioactive element is 20 min . The time interval between the stages of its 33% and 67% decay is

The half-life of a radioactive element is 100 minutes . The time interval between the stage to 50% and 87.5% decay will be:

The half-life of a radioactive substance is 20 min. the time taken between 50% decay and 87.5% decay of the substane will be

" The half life of a substance is "20" minutes.What is the time interval between "33%" decay and "67" % decay? "

The half life of a substance is 20 minutes. what is the time interval between 10% decay and 55% decay (approx).

99 % of a radioactive element will decay between

The average life of a radioactive element is 7.2 min. Calculate the time travel (in min) between the stages of 33.33% and 66.66% decay