valence-bond theory 英 [ˈvæləns bɒnd ˈθɪəri] 美 [ˈveɪləns bɑːnd ˈθiːəri]网络 价键理论; 共价键的基本理论是
In chemistry, valence bond theory is one of two basic theories, along with molecular orbital theory, that developed to use the methods of quantum mechanics to explain chemical bonding. It focuses on how the atomic orbitals of the dissociated atoms combine on molecular formation to give individual...
theory n.[C] 1.理论;学理,原理 2.学说;论说;论,说 3.意见,看法;推测,揣度 4.【数】论,理论 semi valence 半价 relativity(theory) 【化】 相对论 surety bond 【法】 保证金, 担保, 担保保证金 continuity bond 连续性轨道接头 bond creditor 【经】 有债券保证的债权人 bond meter 胶接检验...
二 价键理论 ( Valence Bond Theory ) 1927年,Heitler 和 London 用量子力学处理氢气分子 H2 ,解决了两个氢原子之间的化学键的本质问题,使共价键理论从经典的 Lewis 理论发展到今天的现代共价键理论。;从图中可以看出,r = r 0 时, V 值最小,为 V = -D ( D 0 ,- D 0 ) ,; H2 中的化学键,...
theory n.[C] 1.理论;学理,原理 2.学说;论说;论,说 3.意见,看法;推测,揣度 4.【数】论,理论 semi valence 半价 relativity(theory) 【化】 相对论 surety bond 【法】 保证金, 担保, 担保保证金 continuity bond 连续性轨道接头 bond creditor 【经】 有债券保证的债权人 bond meter 胶接检验...
在化学领域中，valence bond theory指的是“价键理论”。价键理论是一种关于化学键的基本理论。是海特勒和伦敦于1927年用量子力学处理氢分子所得结果的推广和发展。基本要点是：（1）若原子A和原子B各有一未成对电子且自旋相反，则可互相配对而构成共价单键，如原子A和原子B各有两个或三个未成对...
Valence Bond Theory 价键理论Valence Bond Theory Another topic that you’ll need to be familiar with for the SAT II Chemistry test is that of valence bond theory. By now, you are aware that two atoms will form a bond when there is orbital overlap between them, and a maximum of two ...
价键理论(Valen..1927年, Heitler 和 London 用量子力学处理氢气分子H2, 解决了两个氢原子之间化学键的本质问题, 使共价键理论从典型的L
Get access to MCQs on Valence Bond Theory along with answers. These questions are aligned with the NEET syllabus and help you better prepare for NEET.
However the old version of valence bond theory is limited to diatomic molecules only. It could not explain the structures and bond angles of molecules with more than three atoms. E.g. It could not explain the structures and bond angles of H2O, NH3etc., ...