This video (12:33) is the first in the Crash Course Biology series.  "And thus begins the most revolutionary biology course in history. Come and learn about covalent, ionic, and hydrogen bonds. What about electron orbitals, the octet rule, and what does it all have to do with a mad man named Gilbert Lewis?"

Re-watch the whole video = 00:00
Carbon is a Tramp = 01:51
Electron Shells = 04:23
The Octet Rule = 06:52
Gilbert Lewis = 05:09
Covalent Bonds = 04:41
Polar & Non-Polar Covalent Bonds = 07:58
Ionic Bonds = 08:29
Hydrogen Bonds = 10:11

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