Molecular Shape

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

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Lumbini Chandrasekera 1B
Posts: 63
Joined: Fri Sep 28, 2018 12:18 am

Molecular Shape

Postby Lumbini Chandrasekera 1B » Tue Nov 27, 2018 6:21 pm

What factors/characteristics help you determine whether a bond is strong or not in a molecule?

Pooja Sheladiya 1L
Posts: 30
Joined: Fri Sep 28, 2018 12:19 am

Re: Molecular Shape

Postby Pooja Sheladiya 1L » Tue Nov 27, 2018 6:35 pm

It just depends on which bond it is because the strongest bond is ion-ion, hydrogen bond, ion-dipole, dipole-dipole, dipole-induced dipole, and London Dispersion Forces which is the weakest bond. This is just an order from strongest to weakest which you can just memorize.

Julia Lee
Posts: 80
Joined: Fri Sep 28, 2018 12:29 am

Re: Molecular Shape

Postby Julia Lee » Tue Nov 27, 2018 6:42 pm

The difference in electronegativity, the amount of bonds, and the melting/boiling point can also tell you whether a bond is strong or not

Pooja Sheladiya 1L
Posts: 30
Joined: Fri Sep 28, 2018 12:19 am

Re: Molecular Shape

Postby Pooja Sheladiya 1L » Tue Nov 27, 2018 6:44 pm

How can you tell whether the compound is polar or nonpolar based on the shape of the Lewis structure?

Julia Lee
Posts: 80
Joined: Fri Sep 28, 2018 12:29 am

Re: Molecular Shape

Postby Julia Lee » Tue Nov 27, 2018 6:50 pm

Pooja Sheladiya 1L wrote:How can you tell whether the compound is polar or nonpolar based on the shape of the Lewis structure?


You can tell by drawing in dipoles on all bonds. If the dipole directions do not cancel out completely in a molecule, it is considered polar. A nonpolar molecule will have the same atoms around it such as methane (CH4).


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