Lewis Diagrams and VSEPR Models

022 - Lewis Diagrams and VSEPR Models

In this video Paul Andersen explains how you can use Lewis Diagrams and VSEPR Models to make predictions about molecules. The Lewis diagrams are a two-dimensional representations of covalent bonds and the VSEPR models show how the molecule could exist in three dimensional space. Pi bonding and odd valence electrons require an extension of this model.

Music Attribution
Title: String Theory
Artist: Herman Jolly

All of the images are licensed under creative commons and public domain licensing:

[dayyuumabby]

wow, an AP chemistry teacher explained VSEPR modeling in 12 minutes better than how my professor (PhD in chemistry) has been trying to for the past week. YOU ARE A LIFE SAVER!

[fatmouth]

Good luck on your midterms everyone - ride the curve, but don't count on it!

[Mmadness]

First of all, YOU ARE AWESOME! Thank you for posting all your bio/chem videos, they are literally the only things that help me make any sense out of all the things I'm learning in college. Obviously your invested in teaching! I know your a teacher and probably have a lot of work, but your also a saint for a lot of other people. Please consider posting a video on hybridization going into depth of the sp, sp2, sp3, sp3d, and sp3d2 (in terms of spins and how to determine they are sp, etc), their shapes, and how the sigma bonds and pi bonds interact? Also a video on Molecular Orbital theory would really save my life (and I'm sure many others). Thank you!!

[tangytoby]

You have been the best teacher i've never had. I've wathced your videos from grade 9 all the way to university. MANY THANKS !!!

[Ambi]

I had to subscribe. My professor needs to take notes from you. You make it so easy to understand.

[notsocooldude]

Thank you. My chemistry teacher talks in a monotone voice and is terrible at teaching and I learned way more in this video than 2 hours worth of class.

[surajrao]

Am I the only one who thinks he looks like Hank?

[AyamGolek]

this is really helpful when i happen to absence in class when the lecturer explaining this theory.thank you sir

[mspiz]

This was so helpful, and you explained it in a way that made so much more sense than when I learned it in class. The example of the balloons really helped me visualize the structure! Thank you!

[faidintoyou]

this mans been w me ever since AP Bio and now chem

[delaineyarnold]

chemistry makes so much more sense after watching your videos! thank you!

[tannercole]

Thank you SO MUCH for helping me pass my Chemistry class! You are such a big help!

[starburst]

When watching this video, I kind of expected that many of you guys in the comments may feel that he was going really fast. And I thought he went way to fast but luckily I already knew most of this material. This shows that many of you guys in the comment sections are smart!

[littledreamerrem]

University student here. Thank you for explaining this properly. My professor, he mentioned Lewis structures in passing, and only barely defined them. And I do mean barely--until earlier this week, I thought they were the same as electron dot diagrams. Yep. He didn't even show us any examples of Louis structures that couldn't be mistaken as an electron dot diagram until yesterday, much less show us how we would get that witchcraft out of a chemical formula... Oh, and did I mention that we have an exam tomorrow? The school tutoring folks have no clue what he's wanting us to do in the review problems half the times, too...

[KlacByKenneth]

Thanks so much Mr.Anderson, your videos really helpful for the Pre-U students in Malaysia :)

[caitlinosullivan]

I took AP bio last year and my teacher showed me your videos. Im in AP Chem chis year and im so excited youre making chemistry videos now!

[ItsYaBroMo]

for 3 years you have helped my thank you thank you

[romeomavuso]

Thanks sir...tomorrow im writing a chemistry 111 test and I didnt understand a thing here but you have more than clarified it for me

[azimuthzero]

Thanks! That balloon analogy really helped my comprehension :D

[jonweinraub]

Can you get more intense with the videos to help folks in general chem 2 (and beyond) in university?  It is amazing though how much high school AP chem goes over in a second semester college course though!