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)
Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:molecular-and-ionic-compound-structure-and-properties/x2eef969c74e0d802:types-of-chemical-bonds/v/metallic-bonds Want to explore more? Check out the full Chemical bonding playlist here: https://youtube.com/playlist?list=PLSQl0a2vh4HAYCvTHhMGsNvLS-btVPXRw&si=98ncVOtXhe4kZibm Metallic bonds result from the electrostatic attraction between metal cations and delocalized electrons. The nature of metallic bonding accounts for many of the physical properties of metals, such as conductivity and malleability. Sections: 00:00 - Introduction to metallic bonds 00:20 - Iron atoms and metallic structure 00:46 - Sea of electrons model 01:44 - Delocalized valence electrons 02:00 - Properties of metals from bonding 02:23 - Recap of bonding types and spectrum ------------------ Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc