The fundamental force of attraction between neutrons and protons in the nucleus is called?

The fundamental force of attraction between neutrons and protons in the nucleus is referred to as the nuclear force. This force, also known as the strong nuclear force, is responsible for binding protons and neutrons together within the atomic nucleus. It operates over very short ranges, typically on the order of femtometers (10^-15 meters), and is much stronger than the electromagnetic force and gravitational force at this scale.

The nuclear force overcomes the electromagnetic repulsion between protons, which are positively charged and would naturally repel each other. By holding neutrons and protons tightly together, the nuclear force forms a stable nucleus, which is essential for the existence of atoms as we know them. Its strength and effectiveness at such short distances are pivotal in the processes of nuclear fusion and fission, which are fundamental to both stellar processes and nuclear energy.