noun
: a single electron or one of two or more electrons contained in the outer incomplete shell of an atom and responsible for the chemical properties of the atom
sodium and other alkali metals have only one valence electron
noun
: a single electron or one of two or more electrons contained in the outer incomplete shell of an atom and responsible for the chemical properties of the atom
sodium and other alkali metals have only one valence electron
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012