State the law of radioactive decay. Sketch a graph to illustrate radioactive decay.

What is radioactivity ? State the law of radioactive decay. Show that radioactive decay is exponential in nature.

Which element is normally formed in the radioactive decay?

What is the equation for the nuclear reaction that takes place when tritium undergoes radioactive decay ? Name the product.

beta - decay from a radioactive nuclide leads to :

The most common noble gas obtained in the radioactive decay is

The rate of decay of a radioactive element at t=0 instant 10^(3) disintegrations per second. If the half life of the elements is Is, then the rate of decay after Is will be