Question

what is binding energy

Answer 1

the energy that holds MANY  nucleus together. 

Nuclear binding energy is the energy required to break up the nucleus into its separate nucleons OR this can be expressed as the energy released when the nucleus is formed from separate nucleons.

Binding energy is equal to the decrease in potential nuclear energy of the nucleons when they come together. This is equivalent to the work done on the nucleons by the strong nuclear force.

Binding energy is the energy associated with the strong force that holds the nucleons together.

Answer 2

energy that hold nucleus together