See-Saw Shape

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

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Dayna Pham 1I
Posts: 98
Joined: Fri Sep 28, 2018 12:16 am
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See-Saw Shape

Postby Dayna Pham 1I » Thu Nov 15, 2018 12:40 am

Hello!
Can someone explain what the see-saw shape is please? Is it another name for something in our notes? I know it involves a lone pair, but I cannot conceptualize how it looks like a see-saw.

Thanks!

melissa_dis4K
Posts: 106
Joined: Fri Sep 28, 2018 12:28 am

Re: See-Saw Shape

Postby melissa_dis4K » Thu Nov 15, 2018 12:47 am

Hello! I believe that see saw shape is one in which the central atom has 5 regions of electron density, 4 being bonds between the atoms and the 5th being the lone pair. For example, in the Lewis structure for TeCl(subscript 4), Te is the central atom and when all formal charges equal 0, Te has five regions of electron density, three single bonds, one double bond and one lone pair, thus it is see saw shape. Hope this helps!

Minsub Lee 3E
Posts: 32
Joined: Fri Sep 28, 2018 12:25 am

Re: See-Saw Shape

Postby Minsub Lee 3E » Thu Nov 15, 2018 1:54 am

Going off of Melissa, the lone pair on the central atom wants to occupy as much space as they can, so they push the other atoms in the opposite direction, condensing the atoms to each other to make a see saw structure.

Nicole Lee 4E
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Re: See-Saw Shape

Postby Nicole Lee 4E » Thu Nov 15, 2018 12:42 pm

Here is a visual of an example of a molecule with a see-saw shape.
a216b79503564944a2ba56ce81e135cf.jpg


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