Expanded Octets

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Yiting_Gong_4L
Posts: 69
Joined: Fri Sep 28, 2018 12:25 am

Expanded Octets

Postby Yiting_Gong_4L » Sun Nov 11, 2018 4:48 pm

Which elements can have expanded octets and why?

Schuyler_Howell_4D
Posts: 66
Joined: Fri Sep 28, 2018 12:28 am
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Re: Expanded Octets

Postby Schuyler_Howell_4D » Sun Nov 11, 2018 4:55 pm

Common elements that can have an expanded octet are sulfur, phosphorous, silicon and chlorine. They can have more than an octet because they have d- orbitals that can hold electrons. These d-orbitals have higher energy than 4s- orbitals so those electrons are used for bonding.

Here is a helpful link that has more detail: https://courses.lumenlearning.com/bound ... ctet-rule/

Lasya Gudipudi 1A
Posts: 60
Joined: Fri Sep 28, 2018 12:15 am

Re: Expanded Octets

Postby Lasya Gudipudi 1A » Sun Nov 11, 2018 5:01 pm

Any element on or below period 3 of the periodic table can have an expanded octet because these elements have d orbitals that can hold more electrons.

Sona Hakobyan 3J
Posts: 45
Joined: Fri Sep 28, 2018 12:25 am

Re: Expanded Octets

Postby Sona Hakobyan 3J » Sun Nov 11, 2018 5:02 pm

Any element that has or can have a d orbital (aka period 3 and beyond)

Millicent Navarro 1I
Posts: 61
Joined: Fri Sep 28, 2018 12:25 am

Re: Expanded Octets

Postby Millicent Navarro 1I » Sun Nov 11, 2018 8:52 pm

Elements that would be considered to have an expanded octet are those in period 3 and beyond because these specific elements can/are able to hold electrons in the d-orbital shell.

Cameron_Greenberg_3C
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: Expanded Octets

Postby Cameron_Greenberg_3C » Wed Nov 14, 2018 1:19 am

Elements that have a d orbital can have expanded octets. However, a few elements on the right side of period 3 can expand with the extra electrons. S and Cl are common examples of central atoms with more than 8 electrons.

Phil Timoteo 1K
Posts: 101
Joined: Fri Apr 06, 2018 11:05 am

Re: Expanded Octets

Postby Phil Timoteo 1K » Wed Nov 14, 2018 3:17 am

Elements in and after period three because of the d-orbital.

Abhi4F
Posts: 30
Joined: Fri Sep 28, 2018 12:28 am

Re: Expanded Octets

Postby Abhi4F » Wed Nov 14, 2018 7:12 pm

Any element in period 3 or below can have expanded octets as they can expand into the d-orbitals.

Tatum Keichline 2B
Posts: 64
Joined: Fri Sep 28, 2018 12:26 am

Re: Expanded Octets

Postby Tatum Keichline 2B » Wed Nov 14, 2018 9:06 pm

Atoms that can hold electrons in the d-orbital (P3 and below)

Zubair Ahmed 1L
Posts: 81
Joined: Fri Sep 28, 2018 12:16 am

Re: Expanded Octets

Postby Zubair Ahmed 1L » Wed Nov 14, 2018 10:51 pm

Elements that contain a d-orbital can have expanded octets.


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