valency English English pentavalent multivalent English 氧化價週期表 English VALENCE valence valence valency multivalent English English 原子價(valency) multivalent http://en.wikipedia.org/wiki/Valence_(chemistry) English English valence electrons valence English http://en.wikipedia.org/wiki/Valence_(chemistry) https://en.wikipedia.org/wiki/Valence_(chemistry) valence bound to you this Valence (chemistry) Valence (chemistry) polyvalent chemical valency English valence English valence univalents Valence (chemistry) Valence (chemistry) http://en.wikipedia.org/wiki/Valence_(chemistry) valance 氧化價週期表 univalents English valence valence multivalent valence electrons English valence valence valence valence Valence (chemistry) univalent 氧化價週期表 http://en.wikipedia.org/wiki/Valence_(chemistry) univalents English this valence polyvalent Valence (chemistry) valence English valency English English valence https://en.wikipedia.org/wiki/Valence_(chemistry) trivalent valence English valency Wikipedia trivalent valence 氧化價週期表 English a change in the valence states English bound to you valency valencies 'valency' Valence valence valence valence English valency valensi valence http://en.wikipedia.org/wiki/Valence_(chemistry) బహు సంయోజనీయత valence 氧化價週期表 chemical valency en:Valence (chemistry) monovalent valence Valence (chemistry) valence English valency valency monovalent http://en.wikipedia.org/wiki/Valence_(chemistry) valencies 'valency' bound to you English univalent valency valence electrons 氧化價週期表 Valence (chemistry) valence valence/valency Valence (chemistry) English English English