Expanded Octet  [ENDORSED]

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Rebecca Altshuler 1D
Posts: 61
Joined: Fri Sep 28, 2018 12:15 am

Expanded Octet

Postby Rebecca Altshuler 1D » Sun Nov 04, 2018 10:39 pm

Which atoms are allowed to have an expanded octet? Where do these extra electrons go?

804991762_4A
Posts: 47
Joined: Fri Apr 06, 2018 11:04 am

Re: Expanded Octet

Postby 804991762_4A » Sun Nov 04, 2018 10:42 pm

Any element from the 3rd row and beyond can have an expanded octet. These electrons become bonds or are symmetrically placed around the elements

Ethan Yi 1K
Posts: 62
Joined: Fri Sep 28, 2018 12:28 am

Re: Expanded Octet

Postby Ethan Yi 1K » Sun Nov 04, 2018 10:52 pm

The extra electrons go into the d orbital of the atom. Thats why only elements in rows 3 or higher can have expanded octets, since they have a d orbital.

Laura Gong 3H
Posts: 89
Joined: Fri Sep 28, 2018 12:26 am
Been upvoted: 1 time

Re: Expanded Octet

Postby Laura Gong 3H » Mon Nov 05, 2018 1:18 pm

Elements in the third row and below. Some common ones are P, S, and Cl.

Vicky Lu 1L
Posts: 60
Joined: Fri Sep 28, 2018 12:18 am

Re: Expanded Octet  [ENDORSED]

Postby Vicky Lu 1L » Mon Nov 05, 2018 3:29 pm

Elements are allowed an expanded octet if they are n=3 and after. They are able to do so as there is a d orbital where they can be electrons in. Since n=3, l can be 0, 1, or 2 and therefore corresponds with s, p, and d orbitals.

Aleeque Marselian 1A
Posts: 60
Joined: Fri Sep 28, 2018 12:24 am

Re: Expanded Octet

Postby Aleeque Marselian 1A » Mon Nov 05, 2018 8:44 pm

Elements on and after period 3 can have an expanded octet because they have a d orbital, where they can accommodate more electrons in. Common ones include, Sulfur, Phosphorous, and Chlorine.


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