Expanded Octets

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harperlacroix1a
Posts: 43
Joined: Fri Sep 28, 2018 12:19 am

Expanded Octets

Postby harperlacroix1a » Sun Nov 04, 2018 4:33 pm

Why can some elements have expanded octects? for example, problem 3.57 in the 6th edition asks for lewis structure of a sulfite ion (SO3)2- and in the expanded octet, sulfur has 10 electrons attached to it. why can this happen and when do i know that a compound has an expanded octet?

becca_vandyke_4b
Posts: 30
Joined: Fri Sep 28, 2018 12:29 am

Re: Expanded Octets

Postby becca_vandyke_4b » Sun Nov 04, 2018 4:35 pm

If an atom is in the 3p block or lower, they have an empty d-orbital which allows them to have an expanded octet.

Rami_Z_AbuQubo_2K
Posts: 89
Joined: Thu Jun 07, 2018 3:00 am

Re: Expanded Octets

Postby Rami_Z_AbuQubo_2K » Sun Nov 04, 2018 7:00 pm

Anything from group 3 to 7 in the p block, which are the most common type of used elements, have an expanded octet.


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