Atom centers refer to the central nucleus of an atom, which contains protons and neutrons. Another common term for atom centers is atomic nuclei. However, there are other synonyms that can be used when referring to atom centers. One possible term is the core, which describes the central part of the atom where the atomic nucleus is located. Another synonym is the central atom, which refers to the atom at the center of a molecule or compound. In addition, some scientists may use the term center of mass to describe the atom center, which is the point where the atomic mass is concentrated. Using synonyms for atom centers can help to clarify scientific concepts and facilitate understanding.