Î¸ÎµÏÏÎ¯Î±Ï Î´ÎµÏÎ¼ÏÎ½ ÏÎ¸ÎÎ½Î¿ÏÏ English valence bond theory valence bond theory valence bond (VB) theory Wikipedia Wertigkeitsbondtheorie valence bond (VB) theory valence bond theory https://en.wikipedia.org/wiki/Valence_bond_theory valence bond theory valence bond theory Wikipedia valence bond theory valence bond theory valence bond theory теории валентных связей Valence bond valence bond theory Valence bond valence bond theory http://en.wikipedia.org/wiki/Valence_bond_theory English valence bond theory wikipedia valence bond theory English Valence Bond (VB) Theory ååä¾¡çµåæ³ã® valence bond theory valence bond theory valence bonds valence-bond Valence bond