Nuclear structure refers to the arrangement and interaction of protons and neutrons within an atomic nucleus. These particles, collectively known as nucleons, are held together by the strong nuclear force, which is one of the four fundamental forces of nature. Understanding nuclear structure is crucial for explaining various phenomena, including radioactivity and nuclear reactions. The study of nuclear structure involves examining the energy levels, shapes, and configurations of nuclei. This field of research has significant implications in areas such as nuclear energy, medicine, and astrophysics, helping scientists to unlock the mysteries of matter and the universe.