Expanded octet

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Tatiana 4B
Posts: 30
Joined: Fri Sep 28, 2018 12:28 am

Expanded octet

Postby Tatiana 4B » Mon Oct 29, 2018 2:46 pm

Why does using the D state allow an atom to have an expanded octet?

Brian Hom 2F
Posts: 60
Joined: Fri Sep 28, 2018 12:24 am

Re: Expanded octet

Postby Brian Hom 2F » Mon Oct 29, 2018 2:57 pm

Some atoms contain D orbitals, and when one uses these orbitals for electrons, the central atom in the lewis structure can have more than an octet. The D orbital allows for the atom to have more than an octet as it can fill electrons in its d orbitals once its s and p orbitals are filled.D orbitals can fit 10 more electrons.

Adam Vuilleumier 2K
Posts: 60
Joined: Fri Sep 28, 2018 12:27 am

Re: Expanded octet

Postby Adam Vuilleumier 2K » Mon Oct 29, 2018 3:34 pm

As Dr. Lavelle said in class, the octet rule is better described as the "octet guideline". But for the most part, the elements found in many organic compunds (like carbon, nitrogen, and oxygen) are most stable with a complete octet (8 valence electrons).

005199302
Posts: 108
Joined: Fri Sep 28, 2018 12:15 am

Re: Expanded octet

Postby 005199302 » Mon Oct 29, 2018 11:20 pm

Electrons in an atom with d orbital can fit 10 in the d orbital, which allows for an expanded octet.


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