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Difference between expected & actual nucleus mass
Less than (mass defect is always positive)
Energy equivalent of mass defect (E=mc2E=mc^2E=mc2)
E=mc2E = mc^2E=mc2 (mass defect × speed of light squared)
Energy to separate nucleus into individual nucleons
Higher binding energy = more stable nucleus
Iron-56 (peak of binding energy curve)
Light nuclei combine to form heavier, more stable nuclei
Heavy nuclei split into lighter, more stable fragments
Products have higher binding energy per nucleon
Products more stable than original heavy nucleus
1.672×10−271.672 \times 10^{-27}1.672×10−27 kg
1.674×10−271.674 \times 10^{-27}1.674×10−27 kg
3.0×1083.0 \times 10^{8}3.0×108 m/s
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