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...
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...
valence-shell electron pair repulsion theory 英 [ˈvæləns ʃel ɪˈlektrɒn peə(r) rɪˈpʌlʃn ˈθɪəri] 美 [ˈveɪləns ʃel ɪˈlektrɑːn per...
the stoichiometry of many coordination compounds could be deduced from his Effective Atomic Number formalism and almost 40 years since Gillespie showed that the geometric structure of compounds of the main group elements could be correctly predicted from his Valence Shell Electron Pair Repulsion approach...
For brevity, many chemists record the electron configuration of an atom by giving only its outermost subshell, like 4s1for potassium or 4s2for calcium. These electrons are most distant from the positive nucleus and, therefore, are most easily transferred between atoms in chemical reactions. These...
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: ...
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: ...
NCERT solutions for CBSE and other state boards is a key requirement for students. Doubtnut helps with homework, doubts and solutions to all the questions. It has helped students get under AIR 100 in NEET & IIT JEE. Get PDF and video solutions of IIT-JEE Mains & Advanced previous year pap...
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.2) There are two types of valence shell electron pairs viz., i) Bond pairs and ii) ...
valence shell-electron pair repulsion 专业医学词典 价电子壳层-电子对排斥 与"valence shell-electron pair repulsion"相近的词条 ... valence electron valence number valence of antibody valence of antigen valence of ion valence shell-electron pair repulsion valence shell electron pair repulsion theory val...