Instructional Objectives
5. Chemical Bonding: The Covalent Bond Model
5.1 The Covalent Bond Model
Define the covalent bond.
Explain why some of the atoms form covalent bonds.
Describe covalent bonding.
List and compare the distinctive properties of ionic and molecular compounds.
5.2 Lewis Structures for Molecular Compounds
Draw Lewis symbols for representative elements.
Predict from the Lewis symbols the number of covalent bonds formed.
Draw Lewis structures for covalent compounds and polyatomic ions.
5.3 Single, Double, and Triple Covalent Bonds
Describe the formation of double, and triple covalent bonds.
Identify single double and triple bond in the Lewis structure.
5.4 Valence Electrons and Number of Covalent Bonds Formed
Predict the geometry of molecules using the octet rule, Lewis structure and VSEPR
theory.
5.5 Coordinate Covalent Bonds
Describe the coordinate covalent bond.
Identify coordinate covalent bond in molecules and ions.
5.6 Systematic Procedures for Drawing Lewis Structures
Describe the procedure that is being used fro obtaining Lewis structure of a molecule
or ion.
5.7 Bonding in Compounds with Polyatomic Ions Present
Describe the bonding in an polyatomic ions.
5.8 Molecular Geometry
Obtain the molecular geometry from the Lewis structure using VSEPR theory.
Chemistry at a Glance: The Geometry of Molecules
5.9 Electronegativity
Describe the electronegativity and the trends observed in the periodic table.
5.10 Bond Polarity
Use electronegativity difference in a bond to predict non-polar, polar- covalent
character of a covalent bond.
Classify compounds as having ionic, covalent, or polar covalent bonds.
5.11 Molecular Polarity
Use molecular geometry and bond polarities to predict the polarity of a molecule.
Chemistry at a Glance: Covalent Bonds and Molecular Compounds
5.12 Naming Binary Molecular Compounds
Write the formulas of covalent compounds when provided with the name of the
compound and vice versa.
Chemical Connections: Nitric Oxide: A Molecule Whose Bonding Does Not Follow
"The Rules"; Molecular Geometry and Odor