VSEPR Theory Objectives:

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Presentation transcript:

VSEPR Theory Objectives: 1. Identify the electron pair geometry and molecular geometry for covalently bonded molecules. 2. Determine the bond angles between atoms in a molecule.

Review: Draw any resonance structures for NO2-1 and use formal charges to evaluate the validity of each. What is the VSEPR geometry of the ion? Does the geometry change with different resonance structures?

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Yesterday’s VSEPR Shapes: 3 total domains ____ bonding domains ____ lone pair domains 3D Drawing: Molecular Geometry: 2 ways to have 3 domains!

Yesterday’s VSEPR Shapes: 4 total domains ____ bonding domains ____ lone pair domains 3D Drawing: Molecular Geometry: 3 ways to have 4 domains!

New VSEPR Shapes: 5 total domains 3D Drawing: Molecular Geometry: ____ bonding domains ____ lone pair domains 3D Drawing: Molecular Geometry: Axial versus Equatorial 4 ways to have 5 domains!

New VSEPR Shapes: 6 total domains 3D Drawing: Molecular Geometry: ____ bonding domains ____ lone pair domains 3D Drawing: Molecular Geometry: 5 ways to have 6 domains! VSEPR Robot Lady

Practice 1. Describe the molecular geometry and bond angles for each species shown below. CO2 ClF2+1 BrCl2-1 PCl3 ICl3 SeCl4 XeCl2F2