Expanded Octet

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Elena Saab 4A
Posts: 43
Joined: Fri Sep 28, 2018 12:27 am

Expanded Octet

Postby Elena Saab 4A » Sun Nov 04, 2018 3:57 pm

Are the atoms in the middle of a molecule generally the atoms with an expanded octet (rather than atoms on the periphery)? For example, in ICl4^-, even though it would make more sense for one of the Chlorine atoms to hold the negative charge because it is more electronegative than Iodine, the Iodine carries it. Thanks!

Ronak Singh
Posts: 31
Joined: Fri Sep 28, 2018 12:16 am

Re: Expanded Octet

Postby Ronak Singh » Sun Nov 04, 2018 6:13 pm

The central atoms usually have the expanded octet because they form the most bonds.

Rhea Churi 4K
Posts: 62
Joined: Fri Sep 28, 2018 12:28 am

Re: Expanded Octet

Postby Rhea Churi 4K » Sun Nov 04, 2018 6:14 pm

Yes, Iodine is larger and has more orbitals, so it has more electrons to make bonds.

Avery Zuelch 1D
Posts: 31
Joined: Fri Sep 28, 2018 12:18 am

Re: Expanded Octet

Postby Avery Zuelch 1D » Sun Nov 04, 2018 7:59 pm

The atom that is in row three or below is able to form an expanded octet!

daniella_knight1I
Posts: 57
Joined: Fri Sep 28, 2018 12:18 am

Re: Expanded Octet

Postby daniella_knight1I » Sun Nov 04, 2018 8:57 pm

The largest atom can make expanded octets because they have more shells.


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