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? It's all contained within. Like Crash Course on Facebook: www.facebook.com/YouTubeCrashCourse Follow Crash Course on Twitter: www.twitter.com/thecrashcourse Chapter Timecode: 1. Re-watch the whole video = 00:00 2. Carbon is a Tramp = 01:51 3. Electron Shells = 04:23 4. The Octet Rule = 06:52 5. Gilbert Lewis = 05:09 6. Covalent Bonds = 04:41 7. Polar & Non-Polar Covalent Bonds = 07:58 8. Ionic Bonds = 08:29 9. Hydrogen Bonds = 10:11 biology, crashcourse, gilbert lewis, carbon, hydrogen, electron, proton, covalent bonds, ion, octet rule, covalent bonds, polar, non-polar, ionic bond, hydrogen bond, hank green, john green, vlogbrothers, nobel Support CrashCourse on Subbable: subbable.com/crashcourse