The three-dimensional structures of molecules help determine the physical properties and the reactivity of molecules. It is therefore necessary to be able to predict the three-dimensional shapes so that we can predict these physicals properties of compounds, and in time, predict the reactivity of these compounds.

The following pages are designed to help you learn to predict the shapes of molecules and the consequences of those shapes: the melting points, boiling points, densities, and solubilities of compounds.

To view and to manipulate some of the images (those with an "MDL" in the bottom right hand corner) presented in this module, it is necessary that you have installed MDL's Chemscape Chime

and

that you use Netscape 4.5 as your browser. Other versions or browsers may not work properly.

After installing Chime you will need to restart Windows, if you have a PC,
or Netscape, if you have a Mac.

Here is a set of instructions on how to use the mouse with Chime.

1. Lewis Structures
2. Formal Charge
3. Resonance Structures
4. Valence Shell Electron Pair Repulsion Theory
5. Bond and Molecular Polarity
6. Intermolecular Forces
7. VSEPR Tutorial
8. VSEPR Quiz

WWW Chemistry Modules


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