GENERAL CHEMISTRY

Chapter 9 -- Key Concepts

Understand the concept of a covalent bond.
Use the concept of electronegativity to determine the ionic character of a bond.
Use the octet rule to draw Lewis structures for ions and molecules.
Assign formal charges to atoms in Lewis structures.
Draw resonsance structures for molecules and ions (where appropriate).
Understand and use the exceptions to the octet rule.
Use bond energies to estimate reaction enthalpies.
Correlate bond lengths and bond energies with the bonding in Lewis structures.