Question

Why does the nuclear force exhibit the saturation property?

Options

• Because the nuclear force depends on the electric charge of the nucleons

• Because protons and neutrons have exactly equal masses

• Because the nuclear force follows Newton's law of gravitation

• Because each nucleon interacts strongly only with neighbouring nucleons

Answer 1

The nuclear force shows saturation because each nucleon interacts strongly only with its neighbouring nucleons, a direct consequence of its very short range. This saturation explains the nearly constant binding energy per nucleon for many medium and heavy nuclei.