Exceptions to the Octet Rule

[Claire Guo 1B]

What are some examples of elements in compounds that exemplify exceptions to the octet rule and the reasons behind them?

[Casandra]

What are some examples of elements in compounds that exemplify exceptions to the octet rule and the reasons behind them?

Exceptions to the octet rule are atoms like, phosphorus, Sulfur, and Chlorine, this is because these elements have the d-orbital.

[Ashley Kim]

Looking at it through the hybridization lens, any atom past the 2p orbital can be an exception to the octet rule because the orbitals become degenerate.

[Ashley McClearnen 1B]

Atoms in period 3 or higher are exceptions to the octet rule because they have d-orbitals which can accommodate more electrons.

[Hannah Yates 1K]

Any atom in the 3 orbital or lower can have an expanded octet. It is very common to see it on S, P, and Cl. A good example is PCl5. Phosphorus has an expanded octet with all 5 chlorine’s bonded to it.