Definition of mass defect in English:

mass defect


  • The difference between the mass of an isotope and its mass number, representing binding energy.

    • ‘Heavy hydrogen was chosen as the element first to be examined, because the diplon has a small mass defect and also because it is the simplest of all nuclear systems and its properties are as important in nuclear theory as the hydrogen atom is in atomic theory.’
    • ‘The mass defect that occurs during the fission reactions of an atomic bomb explosion, however, is the product of uncontrolled chain reactions.’
    • ‘Hence, the holding together of protons and neutrons in a nucleus can also be explained by the concept of binding energy and mass defect.’