Write a note on nuclear binding energy.

Explanation

Binding energy of a nucleus is defined as the energy required to breakup a nucleus into its constituent nucleons . It is numerical equal to the energy, equivalent to mass defect called binding energy.
`therefore` Binding energy`=Delta mxx c^(2)=Deltam xx 931` Me V
The binding energy per nucleon is called specific binding energy . This quantity is the measure of stability of the nucleus. Larger the value of specific binding energy greater is the stability for the nucleus.
A graph of binding energy per nucleon versus mass number is the binding energy curve . The binding energy per nucleon has a low value for both very light and heavy nuclei. In order to attain a higher value of binding energy per nucleon , lighter nuclei must unite together to from a heavier nucleus leading to nuclear fusion.