Determining how many electron densities


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MedhaVallurupalli1F
Posts: 30
Joined: Wed Feb 27, 2019 12:15 am

Determining how many electron densities

Postby MedhaVallurupalli1F » Sun Jul 21, 2019 4:02 pm

Do lone pairs count toward the number of electron densities? Or is it just the number of bonds? For example, if a F atom has three bonds and a lone pair, would it be three or four regions of e- density?

Yilun Ding
Posts: 31
Joined: Tue Jun 25, 2019 12:15 am

Re: Determining how many electron densities

Postby Yilun Ding » Sun Jul 21, 2019 5:25 pm

A lone pair is also an electron density. Therefore, a molecule with 3 bonding pairs and 1 lone pair should have 4 electron densities.

Leah farhadi 1F
Posts: 36
Joined: Mon Jun 17, 2019 7:23 am

Re: Determining how many electron densities

Postby Leah farhadi 1F » Sun Jul 21, 2019 6:49 pm

There would be four regions of electron densities. When determine shape we look at electron density and lone pairs count towards creating the overall shape and also have an effect on the bind angles.

Yiyang Jen Wang 4I
Posts: 30
Joined: Wed Nov 21, 2018 12:18 am

Re: Determining how many electron densities

Postby Yiyang Jen Wang 4I » Mon Nov 11, 2019 8:34 am

Yes! Lone pairs do count toward the number of electron densities! The F atom should have four regions of electron density.

AprilPaz
Posts: 31
Joined: Wed Sep 18, 2019 12:18 am

Re: Determining how many electron densities

Postby AprilPaz » Mon Nov 11, 2019 8:47 am

Lone pairs count as electron densities.

BCaballero_3A
Posts: 34
Joined: Wed Nov 14, 2018 12:22 am

Re: Determining how many electron densities

Postby BCaballero_3A » Tue Nov 12, 2019 5:40 pm

Yes they do count, so for this example it would be 4 instead of 3.


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