7th Edition #2E.5(a)

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Linyu Zeng 1H
Posts: 28
Joined: Fri Sep 28, 2018 12:19 am

7th Edition #2E.5(a)

Postby Linyu Zeng 1H » Wed Nov 14, 2018 6:20 pm

What is the Lewis structure of (ClO2)-? Is the Cl atom allowed to have more than 8 e- in its bonding pairs and lone pairs?

Kim Tran 1J
Posts: 62
Joined: Fri Sep 28, 2018 12:24 am

Re: 7th Edition #2E.5(a)

Postby Kim Tran 1J » Wed Nov 14, 2018 6:42 pm

The Lewis structure will have Cl in the middle (with 4 lone e-) with one O single bonded (with 6 lone e- around it) to Cl and the other O double bonded (with 4 lone e-) to Cl. Then add brackets around the Lewis structure and put the negative sign.

And yes, chlorine can have an expanded octet so it can have more than 8e-.

Kayla Vo 1B
Posts: 60
Joined: Fri Sep 28, 2018 12:26 am

Re: 7th Edition #2E.5(a)

Postby Kayla Vo 1B » Wed Nov 14, 2018 11:31 pm

Yes chlorine can have more than an octet because it can hold electrons in its d-orbital. Usually elements in period 3 or higher (e.g P, S, Cl, etc.) can have an expanded octet.

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