Binding energy per nucleon

Binding energy per nucleon is a measure of how much energy is required to hold the protons and neutrons (nucleons) together in an atomic nucleus. It represents the stability of the nucleus; a higher binding energy per nucleon indicates a more stable nucleus. In simpler terms, it reflects how tightly the particles are bound together: a nucleus with strong binding energy is less likely to undergo radioactive decay. This concept helps explain why some elements are more stable than others and plays a key role in the processes of nuclear fission and fusion.