what is mass defect?\no the difference between the mass of the protons and the mass of the neutrons in an…

what is mass defect?\no the difference between the mass of the protons and the mass of the neutrons in an atom\no the difference between the mass of the nucleus in an atom and the total mass of individual nucleons\no the difference between the mass of the nucleus of an atom before and after a nuclear reaction

what is mass defect?\no the difference between the mass of the protons and the mass of the neutrons in an atom\no the difference between the mass of the nucleus in an atom and the total mass of individual nucleons\no the difference between the mass of the nucleus of an atom before and after a nuclear reaction

Answer

Brief Explanations:

Mass defect is defined as the difference between the mass of the nucleus in an atom and the total mass of individual nucleons (protons and neutrons). This mass difference is converted into energy according to Einstein's $E = mc^{2}$ during the formation of the nucleus.

Answer:

the difference between the mass of the nucleus in an atom and the total mass of individual nucleons