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Posted: Mon Oct 28, 2019 11:31 pm
For resonance structures, do they have to follow the octate rule? And if not, when?
Posted: Mon Oct 28, 2019 11:46 pm
Yes. The exceptions are the first 4 elements: H, He, Li, Be.
Posted: Thu Oct 31, 2019 6:18 pm
Resonance structures still do follow the octet rule because they are just different possible structures for the molecule. Either way, to be stable, most atoms do follow the octet rule.
Posted: Thu Oct 31, 2019 7:33 pm
Yes. Resonant structures are just different ways of drawing the same structure. These structures should still follow the octet rule when being drawn all of these different ways.
Posted: Thu Oct 31, 2019 10:54 pm
If a molecule's resonance structures can be drawn where the central atom has an expanded octet, this would be an exception to the octet rule. Another exception would be with Group 13 elements whose resonance structures might not even complete their octet and instead form compounds with 6 electrons.
Posted: Thu Oct 31, 2019 11:06 pm
Yes they do, except for the exceptions Lavelle talked in class. Remember that resonance structures have the same position of atoms, but just different arrangement of electrons and bonds.