question_answer

Define mass defect of a nucleus. How is it related to the binding energy of the nucleus?

Answer:

                The difference between the sum of the rest masses of the nucleons constituting a nucleus and the rest mass of the nucleus is called mass defect. The binding energy of a nucleus is a measure of the energy equivalent to its mass defect \[\text{B}.\text{E}.=\Delta m\times {{\text{c}}^{\text{2}}}\]