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Topic: [PF5Br]- question  (Read 3484 times)

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Offline artem.metelskiy

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[PF5Br]- question
« on: March 09, 2011, 04:35:07 PM »
I'm asked to draw a Lewis dot structure for PF5Br-, but I'm not sure which element goes into center. I'm guessing it will be Br having 4 bonding pairs with F, one bonding pair with P and one lone pair. Is it correct?
I'm also asked to name molecular shape and Hybridization of central element. Would it  be square pyramidal shape and hybridization sp3d3? Thanks.

Offline JustinCh3m

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Re: [PF5Br]- question
« Reply #1 on: March 09, 2011, 06:05:45 PM »
generally speaking, the halogens F and Br will behave like H in Lewis structures -- they usually are attached to just one other atom.  There are exceptions of course (i.e I3-), but go with this. 

So, try arranging the 6 halogens accordingly.  What do you get?...

Offline artem.metelskiy

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Re: [PF5Br]- question
« Reply #2 on: March 09, 2011, 07:01:27 PM »
so the Lewis dot structure would look like this?

Molecular shape Octahedral and hybridization sp3d2?

Offline rabolisk

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Re: [PF5Br]- question
« Reply #3 on: March 09, 2011, 08:51:10 PM »
Yes, I believe so.

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