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Definition of Valence electron
1. Noun. An electron in the outer shell of an atom which can combine with other atoms to form molecules.
Definition of Valence electron
1. Noun. (chemistry) any of the electrons in the outermost shell of an atom; capable of forming bonds with other atoms ¹
¹ Source: wiktionary.com
Medical Definition of Valence electron
1. One of the electron's that take part in chemical reactions of an atom. (05 Mar 2000)