- Principles of Chemistry I: Honors
Fall 2015, Unique 49310
Lecture Summary, 8 September 2015
Almost all bonds have some covalent character. The
classical model of covalent bonding says that there is a region of
space between two interacting nuclei where a shared electron can
lower the potential energy of the system, resulting in a stable
region of potential energy space. This is called a "bonding"
region. If the electron is outside that region, it not only
does not stabilize the two interacting nuclei, it destabilizes the
entire system. This is called the "antibonding" region.
If an electron is in the bonding region, a stable covalent
bond can be formed. If an electron is in an antibonding
region, it will work against formation of a colvalent bond.
We also discussed periodic trends of covalent bonding, such as
bond length, bond order, and bond strength.