MICSP Module Overview

Molecular and Ionic Compound Structure and Properties 

Introduction

In Unit 2, you will apply knowledge of atomic structure at the particulate level and connect it to the macroscopic properties of a substance. Both the chemical and physical properties of materials can be explained by the structure and arrangement of atoms, ions, or molecules and the forces between them. These forces, called chemical bonds, are distinct from typical intermolecular interactions. The electronegativity values of each element in a chemical bond can be used to make predictions about the type of bonding present between the two atoms. For this unit general guidelines will be used with regards to an element's position on the periodic table to assist in determining what type of bond will be formed between atoms.

A great deal of attention will be paid to chemical bonds that share electrons (covalent) as opposed to those that simply donate electrons to other atoms (ionic).  The idea that electrons do not have to be shared evenly will be explored and will lead to the drawing of Lewis structures.  Finally, a Lewis structure will be used to evaluate a molecule's 3-D shape.  The importance of understanding a molecule's 3-dimensional shape cannot be underestimated as it also gives rise to many chemical properties.

Module Lessons Preview

In this module, we will study the following topics:

• Types of Chemical Bonds
• Intramolecular Force and Potential Energy
• Lewis Diagrams
• Resonance and Formal Charge
• VSEPR and Bond Hybridization

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