Chemical Bonding Class 11 | #1 Chemistry Chapter 4 | Lewis structure

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Timestamps:
0:00 Introduction
0:54 Atoms
5:26 Molecules formation theories
6:18 Kossel-Lewis approach
8:51 Lewis Symbols
12:06 Octet Rule
19:14 Lewis Dot Structures
21:00 Lewis Dot Structure: CO2
28:37 Lewis Dot Structure: H2O
31:40 Lewis Dot Structure: C2H4
35:19 Lewis Dot Structure:C2H2
38:07 Lewis Dot Structure:Carbonate ion
44:43 Lewis Dot Structure:Nitrite ion
47:49 Lewis Dot Structure:O3
51:09 Lewis Dot Structure: HNO3
56:12 Formal Charge
1:03:34 Example on Formal Charge
1:08:12 Significance of Formal Charge
1:09:13 Limitation of Octet Rule

A chemical bond is formed when atoms are held together by attractive forces. This attraction occurs when electrons are shared between atoms, or when electrons are exchanged between the atoms that are involved in the bond. Ionic bonds are a class of chemical bonds that result from the exchange of one or more valence electrons from one atom, typically a metal, to another, typically a non-metal. This electron exchange results in an electrostatic attraction between the two atoms called an ionic bond. In covalent bonding, the two electrons shared by the atoms are attracted to the nucleus of both atoms. Lewis structures extend the concept of the electron dot diagram by adding lines between atoms to represent shared pairs in a chemical bond. Lewis structures show each atom and its position in the structure of the molecule using its chemical symbol. In this video we will cover:-
1.Understanding about atoms
2.Formation of molecules
3.Kossel-Lewis approach
4.Lewis Symbols
5.What is Octet Rule?
6.Explaining about Lewis dot structures
7.Writing Lewis Dot structures of CO2
8.Writing Lewis Dot structures of H2O
9.Writing Lewis Dot structures of C2H4
10.Writing Lewis Dot structures of C2H2
11.Writing Lewis Dot structures of carbonate ion.
12.Writing Lewis Dot structures of nitrite ion.
13.Writing Lewis Dot structures of ozone.
14.Writing Lewis Dot structures of nitric acid.
15.Understanding formal charge.
16.Calculating charge on atoms using formal charge formula.
17.Why formal charge?
18. What is the limitation of octet rule.

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