If you’ve learned high school chemistry, you’ve probably learned about the octet rule. But why are there exceptions to the octet rule, like hydrogen and helium, or expanded octets? Well, the short answer is because it isn’t a rule — it’s more of a guideline. Watch this video for a summary of the octet rule, to learn why it isn’t a rule and to hear about why expanded octets happen. I also introduce a better theory — molecular orbital theory.
Wikipedia on hypervalent compounds: [ Ссылка ]
Alternative explanation of expanded octets: [ Ссылка ] (via the excellent [ Ссылка ] )
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Thanks to Dave Borgeson for the music: Enchanted, ©Dave Borgeson
Free resources used in this video:
Video: Da Vinci Resolve — [ Ссылка ]
Illustrations: Inkscape: [ Ссылка ]
Animation: Wick Editor: [ Ссылка ]
Image editing: [ Ссылка ]
This video was produced at Kyushu University and supported by JSPS KAKENHI Grant Number JP21K02904. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author and do not necessarily reflect the views of Kyushu University, JSPS or MEXT.
