Lone Pair E-

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Isis_DW_3G
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Lone Pair E-

Postby Isis_DW_3G » Wed Nov 18, 2020 2:13 pm

Do lone pair e- count as their own regions of e- density? or is it just the atom that's counted?
thank you!

Gabby Magat 3F
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Re: Lone Pair E-

Postby Gabby Magat 3F » Wed Nov 18, 2020 2:24 pm

Yes, lone pair electrons are also regions of electron density! They have a much stronger force of repulsion than bonding pairs, but both are considered regions of electron density.

Frankie Mele 3J
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Re: Lone Pair E-

Postby Frankie Mele 3J » Wed Nov 18, 2020 2:41 pm

Lone pairs are counted as regions of e- density just like atoms. However, they do act differently than bonding atoms because of their high repulsion force which changes the overall shape of the molecule.

Xinying Wang_3C
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Re: Lone Pair E-

Postby Xinying Wang_3C » Wed Nov 18, 2020 6:53 pm

Hi, yes, lone pair electrons also count in electron density and will affect the shape of the molecules, but they don't count when naming the geometry of the molecule.

Madisen Brown -1C
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Re: Lone Pair E-

Postby Madisen Brown -1C » Wed Nov 18, 2020 6:54 pm

Lone pair electrons are included in the region of electron density.

Jaden Ward 3J
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Re: Lone Pair E-

Postby Jaden Ward 3J » Wed Nov 18, 2020 9:46 pm

Just like atoms are, lone pair electrons are also considered in the electron density. Their high repulsion force causes them to act slightly different, causing 2 electron pairs needing to be as far away from eachother as possible in a structure.

DMaya_2G
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Re: Lone Pair E-

Postby DMaya_2G » Wed Nov 18, 2020 10:41 pm

The lone pair electrons are also considered in the count of electron density, which that will affect the molecules shape. However, it doesn't count when figuring out the geometry of the molecule.

Lorraine Jiang 2C
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Re: Lone Pair E-

Postby Lorraine Jiang 2C » Wed Nov 18, 2020 11:48 pm

I think one lone pair of e- is counted as one electron density. So for example, like H2O, on the oxygen atom, there are two lone pairs of e- and we say there are four electron density clouds, 2 bonding and 2 lone-pairs.

Hope it helps!

Mary Shih 3J
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Re: Lone Pair E-

Postby Mary Shih 3J » Thu Nov 19, 2020 6:18 pm

it counts as its own electron density because it region contains electrons. You only look at the elements when determine the basic shape

Haochen He 3L
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Re: Lone Pair E-

Postby Haochen He 3L » Sat Nov 21, 2020 1:48 am

Yes. One lone pair is considered as one region of electron density. Hope it helps :)

Sejal Parsi 3K
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Re: Lone Pair E-

Postby Sejal Parsi 3K » Sat Nov 21, 2020 4:27 am

Yes, lone pair electrons do count and will affect the shape because of their strong repulsion.

Nhu Pham-Dis3G
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Re: Lone Pair E-

Postby Nhu Pham-Dis3G » Sat Nov 21, 2020 4:31 pm

Yes even though lone pair electrons are not bonded to anything else they also would be considered a region of electron density. They could also cause repulsion and influences the overall molecule.

Mahika More 1H
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Re: Lone Pair E-

Postby Mahika More 1H » Sat Nov 21, 2020 4:35 pm

Yes, lone pairs are considered their own regions and they repel other regions strongly too. That is why when looking at the shape of molecules we have to consider lone pairs (because they repel the other bonds).

Crystal Pan 2G
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Re: Lone Pair E-

Postby Crystal Pan 2G » Sat Nov 21, 2020 5:28 pm

Lone pairs count as e- density regions as well.

Adam Bustamante 1I
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Re: Lone Pair E-

Postby Adam Bustamante 1I » Sat Nov 21, 2020 6:06 pm

Yes, lone pairs of electrons count as regions of electron density!

Jerry_T
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Re: Lone Pair E-

Postby Jerry_T » Sun Nov 22, 2020 12:04 am

Yes, lone pair electrons are also regions of electron density. If they weren't then, molecular shape would be only determined by bonding electrons.

Shruti Kulkarni 2I
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Re: Lone Pair E-

Postby Shruti Kulkarni 2I » Sun Nov 22, 2020 12:14 am

Yes, they do! Lone pair electrons count as another region of electron density. In fact, they often have a larger electron density than a bond!

Claudia_Danysh_2B
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Re: Lone Pair E-

Postby Claudia_Danysh_2B » Sun Nov 22, 2020 12:12 pm

Lone pair electrons do count as their own area of electron density!

Emma Strassner 1J
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Re: Lone Pair E-

Postby Emma Strassner 1J » Sun Nov 22, 2020 12:47 pm

Hi, we do count regions of electron density because they affect the shape of the molecule by repelling other regions.

Reese_Gover2K
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Re: Lone Pair E-

Postby Reese_Gover2K » Sun Nov 22, 2020 1:18 pm

Yes they do count as a region of electron density.

Darren1j
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Re: Lone Pair E-

Postby Darren1j » Sun Nov 22, 2020 2:06 pm

Why are lone pairs more "diffuse" or take up a larger space than bonding pairs do? Since they all are areas of electron density

Justin Lin 1B
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Re: Lone Pair E-

Postby Justin Lin 1B » Sun Nov 22, 2020 2:39 pm

Lone pairs do count as their own region of e- density

Lea Chamoun 2J
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Re: Lone Pair E-

Postby Lea Chamoun 2J » Sun Nov 22, 2020 2:49 pm

yes, lone pairs count as their own region of electron density. But when naming a shape, the regions of electron density in bonding are used.

Jason_John_2F
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Re: Lone Pair E-

Postby Jason_John_2F » Sun Nov 22, 2020 3:27 pm

lone pairs do count as their own region of electron density

David Y
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Re: Lone Pair E-

Postby David Y » Sun Nov 22, 2020 3:57 pm

Yes a lone pair is considered a region of electron density

Jason Knight - 1F
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Re: Lone Pair E-

Postby Jason Knight - 1F » Sun Nov 22, 2020 3:59 pm

Correct, a lone pair does count as its own region of electron density. Electron density counts for both lone pair electrons and bonding pairs.

Sophia Kalanski 1A
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Re: Lone Pair E-

Postby Sophia Kalanski 1A » Sun Nov 22, 2020 4:45 pm

yes they count as their own separate region and have a stronger repulsion power than the rest of the regions. the powers go from lone pair to lone pair>lone pair to bonding pair>bonding pair to bonding pair. This will in turn also cause the angles between the other regions to be greater.

Jared Limqueco 3E
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Re: Lone Pair E-

Postby Jared Limqueco 3E » Sun Nov 22, 2020 5:04 pm

Just to reiterate for the 20th time, yes, e- pairs are counted. E- repulsion can influence shape.

Marco Vivar 3G
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Re: Lone Pair E-

Postby Marco Vivar 3G » Sun Nov 22, 2020 8:44 pm

Yes they count and therefore, affect the angle of the geometric shape

Alison Perkins 2B
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Re: Lone Pair E-

Postby Alison Perkins 2B » Sun Nov 22, 2020 8:52 pm

Yes, each lone pair counts as its own region of electron density.

Joshua Swift
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Re: Lone Pair E-

Postby Joshua Swift » Sun Nov 22, 2020 9:09 pm

Yes, bonds and lone pairs count as regions of electron density and contribute to the overall shape of the molecule.

DavidTabib 3H
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Re: Lone Pair E-

Postby DavidTabib 3H » Sun Nov 22, 2020 9:46 pm

Yes, they are also their own region of electron density.

Lauren Mungo 1K
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Re: Lone Pair E-

Postby Lauren Mungo 1K » Sun Nov 22, 2020 9:48 pm

yes, they are considered to have their own region of electron density and contribute to the shape

AJForte-2C
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Re: Lone Pair E-

Postby AJForte-2C » Sun Nov 22, 2020 10:15 pm

lone pair e- do count as their own regions of electron density, including when you are creating a VSPER model. In addition, e- are more repulsive compared to bound atoms, which in turn affects the bound angles of a molecule.

jia207
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Re: Lone Pair E-

Postby jia207 » Sun Nov 22, 2020 10:17 pm

Lone pair e- count as their own regions of e- density.

Melissa Solis 1H
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Re: Lone Pair E-

Postby Melissa Solis 1H » Sun Nov 22, 2020 10:18 pm

Like everyone else has said lone pair electrons do count in electron density as well as affecting the shape of the molecules themselves.

Isabella Cortes 2H
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Re: Lone Pair E-

Postby Isabella Cortes 2H » Sun Nov 22, 2020 10:49 pm

yes!! lone pairs do count as their own region of electron density so they affect the shape of the molecule.

Gian Boco 2G
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Re: Lone Pair E-

Postby Gian Boco 2G » Sun Nov 22, 2020 11:26 pm

Yep, thus affecting the shape of the molecule. Their repulsion is stronger than bonding pairs.

Lorraine Medina 3E
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Re: Lone Pair E-

Postby Lorraine Medina 3E » Thu Nov 26, 2020 11:25 pm

Yes, a lone pair counts as a region of electron density. Hope this helps!

gabbi_r2C
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Re: Lone Pair E-

Postby gabbi_r2C » Fri Nov 27, 2020 12:13 am

I agree with everyone above. Lone pairs are their own regions of electron density :)

Jack_Pearce_2H
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Re: Lone Pair E-

Postby Jack_Pearce_2H » Fri Nov 27, 2020 1:12 am

They most definitely do! in terms of the magnitude of which molecular geometry is affected by other regions of electron density it goes as follows, LP-LP, LP-atom, atom-atom. Lone pairs are not shared and essentially belong to the atom which the LP is assigned, which is why affect vsper so much.

105618850
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Re: Lone Pair E-

Postby 105618850 » Sat Nov 28, 2020 12:03 am

Yes they are considered electron regions. That is why they contribute greatly to bond angles and molecular structure; with their repulsion.

Savannah Torella 1L
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Re: Lone Pair E-

Postby Savannah Torella 1L » Sun Nov 29, 2020 10:53 pm

Yes, lone pairs count as their own region of electron density. That is why the shape of a compound is dependent on both the number of outer atoms and the number of lone pairs.

Karen Elrayes 1L
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Re: Lone Pair E-

Postby Karen Elrayes 1L » Sun Nov 29, 2020 10:55 pm

Lone pairs have their own electrical density kind of like a bubble around them that causes repulsion

Sean Phen
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Re: Lone Pair E-

Postby Sean Phen » Sun Nov 29, 2020 10:58 pm

Yes, Lone Pair electrons do count as an electron density region.
Last edited by Sean Phen on Sun Nov 29, 2020 10:59 pm, edited 1 time in total.

Annie Tong 2G
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Re: Lone Pair E-

Postby Annie Tong 2G » Sun Nov 29, 2020 10:58 pm

Lone pairs (and also radicals) have their own density. However, they only influence the shape of a molecule in electron geometry, not molecular geometry.

joshtully
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Re: Lone Pair E-

Postby joshtully » Sun Nov 29, 2020 11:41 pm

Yes, lone pair electrons do count.

Andy Hernandez
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Re: Lone Pair E-

Postby Andy Hernandez » Sun Nov 29, 2020 11:43 pm

Lone pair electrons do count as their own region of electron density


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