A sample of radioactive meterial has mass `m`, decay constant `lambda`, and molecular weight `M`. Avogardo constant `=N_(A)`. The initial activity of the sample is:

A sample of radioactive material has mass m , decay constant lambda , and molecular weight M . Avogadro constant =N_(A) . The initial activity of the sample is:

A sample of radioactive material has mass m , decay constant lambda , and molecular weight M . Avogadro constant =N_(A) . The initial activity of the sample is:

A sample of radioactive material has a mass m, decay constant lamda and molecular weight M. Avogadro constant N_A . (a) Find the initial activity of the samples (b) the activity of the substance after t sec

A radioactive sample has a mass m, decay cosntant lambda , and molecular weight M. If the Avogadro number is N_A , then (a) find the initial number of neclei present, (b) find the number of deacyed nuceli after a time t, (c ) find the activity of the sample after a time t,

A radioactive sample has a mass m, decay cosntant lambda , and molecular weight M. If the Avogadro number is N_A , then (a) find the initial number of neclei present, (b) find the number of deacyed nuceli after a time t, (c ) find the activity of the sample after a time t,

A radioactive isotope has a decay constant lambda and a molar mass M. Taking the Avogadro constant to be L, what is the activity of a sample of mass m of this isotope ?

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

The decay constant lambda of a radioactive sample: