1940年美国的 Sidgwick等人提出了价层电子对互斥理论(valence shell electron pair repulsiontheory),简称 VSEPR法。对于 AX。型分子或离子,其价层电子对指的是中心原子形成σ键的电子对和孤对电子对,其数目等于X原子数n与孤对电子对数之和。该理论认为,AX。型分子或离子的几何构型,主要决定于中心原子的价层电子...
阅读下面的材料并思考价层电子对互斥理论(Valence Shell ElectronPair Repulsion Theory)适用于主族元素间形成的AB_n 型分子或离子。该理论认为,一个共价分子或离子中,中心原子A周围所配置的原子B(配位原子)的立体构型,主要决定于中心原子的价电子层中各电子对间的相互排斥作用。这些电子对在中心原子周围按尽可能互相...
Use the valence shell electron-pair repulsion theory to predict for each of the following: (1) the geometric arrangement of electron pairs around the central atom, (2) the molecule shape.NO2、sf6> so32\ CIO/、cio3\ nh4+相关知识点: ...
valence shell electron pair repulsion theory 价层电子对互斥理论 electron pair repulsion theory 【化】 电子对互斥理论 electron pair repulsion 【化】 电子对互斥 coupled pair many electron theory 【化】 耦合电子对多电子理论 annihilation of electron pair 电子对湮没 lone electron pair 孤对电子 ...
valence-shell electron pair repulsion theory 英 [ˈvæləns ʃel ɪˈlektrɒn peə(r) rɪˈpʌlʃn ˈθɪəri] 美 [ˈveɪləns ʃel ɪˈlektrɑːn per...
Use the valence shell electron-pair repulsion theory to predict for each of the following: ⑴ the geometric arrangement of electron pairs around the central atom, ⑵ the molecule shape. NO2、SF6、SO32-、ClO4-、C1O3-、NH4+ 相关知识点: ...
Valence Shell Electron Pair Repulsion (VSEPR) Theory搜索 Molecular GeometryMolecules of different subtances have diverse shapes. Atoms attach to one anotherin various geometric arrangements. The overall molecular shape of a molecule isdetermined by its bond angles in three dimensions. The shape of a ...
valence-shell electron pair repulsion theory 英文valence-shell electron pair repulsion theory 中文【化】 价层电子对推斥理论
The basic assumptions of this theory are summarized below.1) The electron pairs in the valence shell around the central atom of a molecule repel each other and tend to orient in space so as to minimize the repulsions and maximize the distance between them....
结果1 题目VSEPR (valence-shell electron pair repulsion) theory predicts an identical shape for all the following, except: A. NH3 B. H3O+ C. BH3 D. CH3- E. All have the same geometry 相关知识点: 试题来源: 解析 C 反馈 收藏