Help on HW#4.9  [ENDORSED]

(Polar molecules, Non-polar molecules, etc.)

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BriannaParrington-1B
Posts: 29
Joined: Fri Apr 06, 2018 11:04 am

Help on HW#4.9

Postby BriannaParrington-1B » Sun Jun 10, 2018 1:41 pm

For 4.9 I counted that the total of valence electrons of ICL3 was 28 electrons. When I drew the Lewis structure in order to figure out the molecular shape, I could only fit 26 electrons around all of the atoms when completing all of their octets. Therefore, I am assuming that Iodine has an expanded octet. Is this correct?

Jocelyn Fermin1J
Posts: 49
Joined: Tue Nov 14, 2017 3:01 am

Re: Help on HW#4.9  [ENDORSED]

Postby Jocelyn Fermin1J » Sun Jun 10, 2018 2:04 pm

Yes, that is correct. It would also be T-shaped because of the arrangement of the 2 lone pairs. (:

Lenaschelzig1C
Posts: 21
Joined: Fri Apr 06, 2018 11:05 am

Re: Help on HW#4.9

Postby Lenaschelzig1C » Sun Jun 10, 2018 11:35 pm

Yes! A lot of the middle block elements have expanded octets!

salvadoralvizo1J
Posts: 29
Joined: Fri Apr 06, 2018 11:01 am

Re: Help on HW#4.9

Postby salvadoralvizo1J » Sun Jun 10, 2018 11:48 pm

Yes, since iodine is beyond the 3p orbital it can and will form an expanded octet.


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