Tetrahedral VSPER model

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

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EmilyJoo_1G
Posts: 50
Joined: Thu Jul 25, 2019 12:16 am

Tetrahedral VSPER model

Postby EmilyJoo_1G » Wed Nov 13, 2019 4:24 pm

Will a central atom with four bonding pairs always be considered tetrahedral? Are there any exceptions?

xenamclean_1G
Posts: 51
Joined: Sat Jul 20, 2019 12:15 am

Re: Tetrahedral VSPER model

Postby xenamclean_1G » Wed Nov 13, 2019 4:27 pm

I think this shape is always regarding the central atom with 4 surrounding bonds.

Abby Soriano 1J
Posts: 103
Joined: Sat Aug 24, 2019 12:16 am

Re: Tetrahedral VSPER model

Postby Abby Soriano 1J » Wed Nov 13, 2019 4:29 pm

A central atom with only four bonding pairs will have a tetrahedral shape. Exceptions start to arise when lone pairs get introduced. For example, a central atom with four bonding pairs and one lone pair will have a molecular geometry of seesaw. We'll most likely go in depth on this topic on Friday.

Ruby Richter 2L
Posts: 103
Joined: Thu Jul 25, 2019 12:17 am

Re: Tetrahedral VSPER model

Postby Ruby Richter 2L » Wed Nov 13, 2019 8:03 pm

The tetrahedral shape always refers to a central atom with 4 bonding pairs, though if the central atom has lone pairs the shape is an exception and the molecular geometry will change.

KaleenaJezycki_1I
Posts: 127
Joined: Sat Aug 17, 2019 12:18 am
Been upvoted: 2 times

Re: Tetrahedral VSPER model

Postby KaleenaJezycki_1I » Wed Nov 13, 2019 9:01 pm

A central atom with four bonding regions will always be known as a tetrahedral for its domain geometry BUT if there are lone pairs attached to the central atom this will change. Eventually we will cover molecular geometries which will allow us to name molecules with lone pairs attached to the central atom more specifically, so we won't refer to the structure just as a tetrahedral anymore, but something more specific according to the number of bonds and lone pairs of electrons.

sarahsalama2E
Posts: 164
Joined: Fri Aug 30, 2019 12:16 am

Re: Tetrahedral VSPER model

Postby sarahsalama2E » Wed Nov 13, 2019 10:00 pm

will we cover shapes with lone pairs and bonding regions as well? like AX4E1 for example.

Nare Nazaryan 1F
Posts: 101
Joined: Fri Aug 09, 2019 12:17 am

Re: Tetrahedral VSPER model

Postby Nare Nazaryan 1F » Wed Nov 13, 2019 10:16 pm

I believe it is always tetrahedral when 4 bonds surround the central atom, however, lone pairs could also play a role and change the shape.

Verity Lai 2K
Posts: 100
Joined: Sat Aug 24, 2019 12:18 am

Re: Tetrahedral VSPER model

Postby Verity Lai 2K » Thu Nov 14, 2019 3:08 pm

I think its always a tetrahedral shape if there are four electron regions because they want to be as far away from each other as they can be which produces the tetrahedral shape.


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