Memorizing the VSPER Models

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

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Jasmine Chow 1F
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Joined: Fri Sep 28, 2018 12:16 am
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Memorizing the VSPER Models

Postby Jasmine Chow 1F » Thu Nov 15, 2018 7:58 pm

I am currently trying to memorize all the VSPER models from the chart from the text book. What would be the best way to memorize all the information about the angles and what shapes belong with what?

705152867
Posts: 28
Joined: Fri Sep 28, 2018 12:18 am

Re: Memorizing the VSPER Models

Postby 705152867 » Thu Nov 15, 2018 8:40 pm

I feel like if you know the angles of the models or at least know the names, it is easier to visualize the shape just from that info alone. If you take, for example, square planar...the angles are 90 degrees and a model being "planar" implies it can only lie on one "plane"/be flat. If you get a grasp on trigonal planar, trigonal pyramidal, and tetrahedral, the more difficult models like trigonal bipyramidal and pentagonal bipyramidal become easier to visualize. Think about the shapes and what angles form those shapes.

Javier_Ochoa_DIS_3J
Posts: 33
Joined: Fri Sep 28, 2018 12:23 am

Re: Memorizing the VSPER Models

Postby Javier_Ochoa_DIS_3J » Thu Nov 15, 2018 9:12 pm

Another easy way to memorize VSPER shapes is to memorize which ones correspond to which VSPER formula.

Daniel_Frees_1L
Posts: 40
Joined: Fri Sep 28, 2018 12:18 am

Re: Memorizing the VSPER Models

Postby Daniel_Frees_1L » Thu Nov 15, 2018 10:21 pm

Do we have to know the VSPER formulas themselves? Or just the final shape

g orloff 1J
Posts: 45
Joined: Fri Sep 28, 2018 12:16 am

Re: Memorizing the VSPER Models

Postby g orloff 1J » Thu Nov 15, 2018 10:27 pm

I go by memorizing the total species bound to the central atom meaning all lone pairs and atoms bound to the CENTRAL ATOM. Then determine how many atoms are bound and how many lone pairs are bound and from that determine the shape and bond angles.


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