Nuclear Binding Energy Calculation ; Mass Defect

this video uses E=mc^2 to determine the mass defect (mass difference) to calculate the nuclear binding Energy, E (energy difference). The nuclear binding energy is the energy required to separate a nucleus into its protons & neutrons. As odd as it sounds, a nucleus weighs LESS than the sum of its parts, the protons and neutrons, and that is why the change in mass that occurs is called the mass defect. The energy calculated would be the nuclear binding energy for ONE nucleus. A large mass of an isotope would require more energy and may be referred to as Energy per mole, which is common.

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