Chapter 8: Basic Concepts of Chemical Bonding

8/9/01


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Table of Contents

Chapter 8: Basic Concepts of Chemical Bonding

Chemical Bonding and Properties

8.1 Chemical Bonds and Electronic Configuration

Types of Bonds

Types of Bonds

Types of Bonds

Types of Bonds

Types of Bonds

Lewis Symbols and the Octet Rule

Lewis Symbols

Octet Rule

Octet Rule

Octet Rule

Octet Rule

Elements can violate the octet rule

8.2 Ionic Bonding

Structures of Ionic Crystals

Structures of Ionic Crystals

Coordination Numbers

Structure and Properties

Structure and Properties

Strength of Ionic Bonds

Electrical Conductivity

Born-Haber Cycle

The Born-Haber Cycle

The Born-Haber Cycle

The Born-Haber Cycle

Relative Lattice Energies

8.4 Covalent Bonding

Covalent Bonds

Single Covalent Bonds

Single bonds between like atoms

Single bonds between unlike atoms

Some atoms can form bonds with more than one atom

Multiple Bonds

Comparison of Bonds

Valence Electrons and Number of Bonds

More examples to consider:

Structures of Covalent Molecules

8.5 Bond Polarity and Electronegativity

Polarity of Covalent Bonds

Bonds: Ionic, Polar Covalent, Non-Polar Covalent

Electronegativity

Trends in Electronegativity

Trends in Electronegativity

Trends in Electronegativity

Polarity and Electronegativity

8.6 Drawing Lewis Structures

Write Lewis formulas for the following molecules or ions:

Formal Charge

8.7 Resonance Structures

Resonance

8.8 Exceptions to the Octet Rule

Exceptions to the Octet Rule

Exceptions to the Octet Rule

Exceptions to the Octet Rule

8.9 Strengths of Covalent Bonds

Average Bond Energy

Bond Energies

Bond Energies and Heats of Reaction

Break all reactant bonds, then make product bonds

Heats of Reaction

Sample Problem

Bond Energy and Bond Length

Bond Lengths

Author: Department of Chemistry and Biochemistry

Email: JBirk@asu.edu

Home Page: http://www.public.asu.edu/~jpbirk