Lone Pair=Polar?

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

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FizaBaloch1J
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Joined: Fri Apr 06, 2018 11:01 am

Lone Pair=Polar?

Postby FizaBaloch1J » Tue Jun 12, 2018 5:48 pm

If a lewis structure has a lone pair on central atom, does that automatically make the structure polar?

Chem_Mod
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Re: Lone Pair=Polar?

Postby Chem_Mod » Tue Jun 12, 2018 9:19 pm

No, for example square planar has 4 atoms attached and 2 lone pairs, but it is nonpolar if all the attachments are the same.

Myles Chang 1B
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Joined: Fri Apr 06, 2018 11:02 am

Re: Lone Pair=Polar?

Postby Myles Chang 1B » Wed Jun 13, 2018 12:16 am

This is not necessarily true. For example, XEF2 has two lone pairs, yet is still nonpolar and linear.

FizaBaloch1J
Posts: 41
Joined: Fri Apr 06, 2018 11:01 am

Re: Lone Pair=Polar?

Postby FizaBaloch1J » Wed Jun 13, 2018 1:28 pm

Chem_Mod wrote:No, for example square planar has 4 atoms attached and 2 lone pairs, but it is nonpolar if all the attachments are the same.


Ah, makes sense! Thank you!


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