Polar Molecules and Symmetry

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

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Amina Durrani 3G
Posts: 52
Joined: Sat Jul 20, 2019 12:16 am

Polar Molecules and Symmetry

Postby Amina Durrani 3G » Sun Nov 17, 2019 12:50 pm

Can you assume a molecule is polar if it's non symmetrical?

Ada Chung 1C
Posts: 55
Joined: Sat Aug 17, 2019 12:15 am

Re: Polar Molecules and Symmetry

Postby Ada Chung 1C » Sun Nov 17, 2019 12:52 pm

I believe that is true because if the dipoles don't cancel then the molecule will be charged. In molecules where all the dipoles can cancel because of symmetry, they are considered nonpolar. An example where the dipoles cancel is CO2 which has a linear molecular shape.

Posts: 46
Joined: Mon Sep 23, 2019 12:17 am

Re: Polar Molecules and Symmetry

Postby JTijerina_4A » Sun Nov 17, 2019 12:54 pm

A molecule is polar when the regions of electron density do not cancel (i.e. if they are not symmetrical).

Isabella Dal Porto 1H
Posts: 100
Joined: Fri Aug 30, 2019 12:16 am

Re: Polar Molecules and Symmetry

Postby Isabella Dal Porto 1H » Sun Nov 17, 2019 12:55 pm

If atoms in a molecule are symmetrical, then the charges are balanced by each other and the molecule is considered nonpolar. If a molecule is asymmetrical, it is polar.

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