👉 The term "muonium" is a term used in nuclear physics and has no direct connection to any specific object or concept. It refers to the nucleus of an atom, which contains protons, neutrons, and electrons arranged in a special way called the muonium structure. The muonium is one of the four stable states of the proton (proton-proton) nucleus, with the other three being alpha, beta, and gamma states. The term "muonium" was coined by
