Lewis Structures for Resonance

[Riya Sood 4G]

Is there always an octet formed for Lewis Structures of atoms with resonance ?

[JonathanS 1H]

No, for certain atoms with d-orbitals, there can be more than an octet surrounding a specific atom. The example we went through in class that shows this is the sulfate ion, SO₄^2-.

[FDeCastro_1B]

Yes, there is always an octet formed.

[SMIYAZAKI_1B]

As the first person mentioned, the Lewis Structure for resonance does not always have a octet rule. Of course, as we always say, Hydrogen, Helium, lithium, and Beryllium does not have octet rule but it has duet rule. Other certain structures does have a different types of rules as well such that some holds more then 8 valence electrons.

[christabellej 1F]

Generally, the octet rule will be followed for lewis structures that have resonance. However, as someone mentioned above, some atoms can form more than four bonds because they are big enough and have the ability to fill the d orbitals. This only starts after the 3 p level though, and so some atoms in this level or more can form more than four bonds or have additional lone pairs on the atom.