Consider an initially pure `M gm` sample of `X`, an isotope that has a half-life of `T` hour, what is its initial decay rate (`N_A` = Avogadro No, atomic weight of `X` is `A`)
The radioisotpe, N-13,has a half-life of 10.0 minutes. What is the rate constant for the radioactive decay of N-13?
If the half of an isotope X is 10 years , its decay contant is
Two radioactive substance X and Y initially contain equal number of nuclei. X has a half life of 1 hour and X has a half-life of 2 hours. After the ratio of activity of X to that of y is
The initial concentration of a radioactive substance is No and its half life is 12 hours. What will be its concentration after 36 hours?
A radio-isotope has a half-life of 5 yeard. The fraction of the atoms of this material that would decay in 15 years will be
A ratio isotope has a half-life of 75 years. The fraction the atoms of this material that would decay in 150 years. Will be.
