Electron Pair and Molecular Geometry
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In this module:
Introduction
 
Definitions
 
Electron Pair Geometry
Molecular Geometry
 
 

Electron Pair Geometry

Note:

Before you proceed with this tutorial, you must know how to draw Lewis Dot Structures. If you are unfamiliar with this technique, or if you'd like to review Lewis Dot Structures, click on the text below.

Lewis Dot Structure Tutorial

 

To predict the electron-pair geometry of a molecule, we first need to identify the central atom in a molecule.

Example: CH4

The central atom in this molecule is C.

Your turn: Identify the central atom in each of the following molecules:
CO2 BF3 NH3
 

Molecular Geometry