Shape vs. Electron Arrangement

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

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Emma Li 2C
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Joined: Fri Sep 29, 2017 7:07 am
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Shape vs. Electron Arrangement

Postby Emma Li 2C » Tue Nov 14, 2017 11:43 pm

I'm a little confused about the difference between shape and electron arrangement. I know that the shape of the molecule only depends on the bonds/locations of the atoms, and the electron arrangement accounts for lone pairs, but I'm confused about why both types of models are needed.

Thank you!

Liam Maxwell 2E
Posts: 53
Joined: Fri Sep 29, 2017 7:07 am

Re: Shape vs. Electron Arrangement

Postby Liam Maxwell 2E » Wed Nov 15, 2017 12:47 am

I'm not sure if this helps that much but when determining the shape of a molecule it is helpful to first plot out its electron arrangement to serve as a starting point. From the electron arrangement you can infer the shape.

Jingyi Li 2C
Posts: 56
Joined: Fri Sep 29, 2017 7:06 am

Re: Shape vs. Electron Arrangement

Postby Jingyi Li 2C » Wed Nov 15, 2017 11:37 am

The molecular shape depends on only the location of atoms, while the electron arrangement is determined by both atoms and lone pairs. The molecular shape is determined by the electron arrangement. When you want to find out the molecular shape, first find the electron arrangement and then take out the lone pairs.

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