Lewis Structures and VSEPR Shape

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

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Kyra Dingle 1B
Posts: 55
Joined: Fri Sep 29, 2017 7:04 am

Lewis Structures and VSEPR Shape

Postby Kyra Dingle 1B » Sat Nov 18, 2017 5:33 pm

When drawing lewis structures, do we need to draw them in a way that reflect the molecular shape?
For example in sulfur tetrafluoride (SF4), during lecture we drew it with the lone pair on the left side of the sulfur (the equatorial plane). I believe this reflects the most stable shape with the least amount of repulsion. However for the upcoming test and final, would it matter where we drew the lone pair in the lewis structure?

Tasnia Haider 1E
Posts: 55
Joined: Sat Jul 22, 2017 3:01 am

Re: Lewis Structures and VSEPR Shape

Postby Tasnia Haider 1E » Sat Nov 18, 2017 5:44 pm

I don't think you need to unless he specifically asks for it. Otherwise, you can just normally do a Lewis structure.

Ammar Amjad 1L
Posts: 54
Joined: Thu Jul 27, 2017 3:00 am
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Re: Lewis Structures and VSEPR Shape

Postby Ammar Amjad 1L » Sat Nov 18, 2017 6:33 pm

No, you don't need to draw the lewis structure to reflect the shape. However, is could assist you in determining the shape if you do so.

Karan Singh Lecture 3
Posts: 23
Joined: Fri Sep 29, 2017 7:07 am

Re: Lewis Structures and VSEPR Shape

Postby Karan Singh Lecture 3 » Sat Nov 18, 2017 9:01 pm

Yes, drawing out the lewis structure is great tool in determining the shape of the given molecule.

Gobinder Pandher 3J
Posts: 21
Joined: Fri Sep 29, 2017 7:07 am

Re: Lewis Structures and VSEPR Shape

Postby Gobinder Pandher 3J » Sun Nov 19, 2017 1:04 pm

Dr. Lavelle stated during lecture that you do NOT need to draw the Lewis Structure to reflect the molecular shape. It would be very beneficial to do so but it is not required.


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