Why do atoms combine? Why are only certain combinations possible? Why do molecules possess definite shapes? To answer such questions different theories and concepts have been put forward from time to time. In this fourth unit of class 11 chemistry, we can answer the above questions by learning Kössel-Lewis approach, Valence Shell Electron Pair Repulsion (VSEPR) Theory, Valence Bond (VB) Theory and Molecular Orbital (MO) Theory.
Curated by: Khan Academy India - English (42 videos)
This video summarises the various aspects of bonding like bond length, bond order, nature of bonding, stability and the nature of bonding in homonuclear diatomic molecules using molecular orbital theory. The video also predicts the magnetic nature of these molecules by the way the electron filling takes place in molecular orbitals. Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/science/class-11-chemistry-india/xfbb6cb8fc2bd00c8:in-in-chemical-bonding-and-molecular-structure?lang=en Timestamps: 00:00:00:00 Properties and MO filling 00:02:44:22 What we will explore in this video 00:03:43:03 Hydrogen MO filling and properties 00:04:43:02 Helium and Neon Bond Order 0 00:05:41:24 Not all Bond Order 0 are Noble Gases - diberryllium 00:06:39:06 dilithium MO filling and properties 00:07:41:18 diboron MO filling and properties 00:08:55:03 dicarbon and dinitrogen MO filling and properties 00:10:35:19 dioxygen and difluorine MO filling and properties 00:12:30:06 summarising MO filling and properties Khan Academy India is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We have videos and exercises that have been translated into multiple Indian languages, and 15 million people around the globe learn on Khan Academy every month. Support Us: https://india.khanacademy.org/donate Created by Aswin Vijayaraghavan