University:
Brigham Young University
Course:
CHEM 102 | Concepts of Chemistry
Academic year:

2023
Views:

439

Pages:

8
Author:

InterstellarInsight

Valance Shell Electron fain Repulsion Theong :- (VSEPR Theory) Chia -15² 2s²2p² Geometry- Tetrahedral Shape Tetrahedral Bondaugle- 109.5" 2 15 252 201 LL11 sp3 Tetrahedral Tetrahedral Bent/v-shape Pyramidal 107.5° 104.5° The basic Concept of VSEPR theory is to represent the best possible arrangement of atom with in a molecule with minimum force of repulsion. Postulates:- 1. The unpaired é of Central atorm form bond Pair with Burrounding atom while the Paired è in the valence Shell remain as lone Pairt. 2. Due to Dimilar Ch Change, different e Pair ie. Bond Pair (B.P.) and Lone Pair (L.P.) rrepell each other. 3. The Pains are adjusted on arranged in Buch a mannen that the force of repulsion among them is minimum. ④ The force of repulsion among different e Pain is minimum when they are far apart from each other. ⑤. The force of repulsion among different è pain is not equal which is in the order - L:P-L-P repulsion L-P.-B.P. Repulsio 7 B.P.-B.P. repulsion molecule Typeof Hybridicoty No. of e Pair Shape/Structures Example Linear Trigonal Planar Bent/v-shape Tetrahedral Pyramidal Bent/v-shape Trrigonal bipyramidal See-Saw T-Shape Linear Octahedral Square Pyramidal Square Planar Pentagonal bipyramidal Distorted Octahedral