Nuclear physicist is a specialized term used to describe professionals who study the nucleus of an atom and its properties. Some of the synonyms that describe the roles within the same are - atomic physicist, quantum physicist, particle physicist, condensed matter physicist, and astrophysicist. The atomic physicist is referred to the study of the electromagnetic radiation and its interaction with atoms while the quantum physicist is dedicated to studying the quantum mechanics behavior of the nucleus and atoms. The particle physicist is focused on the subatomic level structure and the condensed matter physicist, is dedicated to studying the behavior of materials comprising of condensed atoms. Astrophysicist is also a kind of nuclear physicist that studies the physics of the universe, including what lies beyond the planet Earth.