noun Descargar 🔗Compartir Protón A positively charged subatomic particle forming part of the nucleus of an atom and determining the atomic number of an element, composed of two up quarks and a down quark. Examples : "The hydrogen atom has only one proton in its nucleus. " El átomo de hidrógeno tiene solo un protón en su núcleo. physics element chemistry science Chat con IAJuego de vocabularioPracticar lectura