Explain Mass defect and Binding energy and establish a relation betwee

1.	Explain Mass defect and Binding energy and establish a relation between them.
Answer» Solution :MASS defect. It is found that the mass of a stable nucleus is always less than the sum of masses of its constituent protons and neutrons in their free state. The difference between the sum of the masses of nucleons constituting it and the rest mass of the nucleus is called mass defect. Let `M_(N)=` mass of neutrons `Z=` number of protons `A=` TOTAL number of nucleons `:.` The mass defect, `Deltam=ZM_(p)+(Z-A)M_(n)-M_("nucleus")` Binding ENERGY. The binding energy of a nucleus may be defined as the energy required to break up a nucleus into its constituent protons and neutrons at infinite distance apart.

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Explain Mass defect and Binding energy and establish a relation between them.

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