The radioactive constant of radium is `4.28 xx 10^(-4)` per year, its half period is approximately

The radioactive decay constant is 4.28 xx 10^-4 year^-1 . What is the half life period of it?

The decay constant of a radioactive material is 5 xx 10^(-4) per year.find its half-life period.

The decay constant of radioactive substance is 4.33 xx 10^(-4) per year. Calculate its half life period .

The decay constant of a radioactive element is 1.05xx10^(-4) / year. What is its half life ?

The decay constant of a radioactive element is 3 xx 10^(-6) min^- .Its half life is

If the rate constant of a first order-reaction is 6.93 xx 10^(-4) per second, what is its half-life period?

In a radioactive substance at t = 0 , the number of atoms is 8 xx 10^4 . Its half-life period is 3 years. The number of atoms 1 xx 10^4 will remain after interval.