Mass defect

  1. The mass defect of a nucleus is the sum of the individual masses of the separated nucleons minus the mass of the intact nucleus.
  2. The mass defect of a nucleus represents the mass of the energy binding the nucleus, and is the difference between the mass of a nucleus and the sum of the masses of the nucleons of which it is composed.

Binding energy

  1. Nuclear binding energy is the energy required to split a nucleus of an atom into its components.
  2.  The binding energy of a nucleus is the energy required to separate it into its constituent protons and neutrons.

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