A nuclear physicist is a scientist who studies the components and behavior of atomic nuclei. They explore the forces that hold the nucleus together, the processes of nuclear reactions, and the properties of different isotopes. Their work is essential for advancements in energy production, medicine, and understanding fundamental physical laws. Nuclear physicists often work in research laboratories, universities, or government agencies. They may be involved in projects related to nuclear energy, medical imaging, or particle physics. Their research can lead to innovations in technology and contribute to safety measures in nuclear power plants and medical applications.