The highest binding energy per nucleon will be for

If radium and chlorine combine to form radium chloride,the compound is:

Who observed that when the nucleus of a uranium atom was bombarded with fast-moving neutrons,it became so unstable that it immediately broke into two nuclei of nearly equal mass,besides other fragments?

The activity of a radioisotope changes with:

Formation of a nucleus from its nucleons is accompanied by:

The number of neutrons in a parent nucleus $X$,which gives a $_7N^{14}$ nucleus after two successive $\beta$ emissions,is: