Polarity of non-symmetric atoms

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

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Dana Wilks 3I
Posts: 30
Joined: Fri Sep 28, 2018 12:23 am

Polarity of non-symmetric atoms

Postby Dana Wilks 3I » Tue Nov 27, 2018 5:18 pm

I understand that when molecules are symmetric, the dipole moments cancel out the net effect is zero ( CCL4 for example) and when they are not symmetric (CHCl3) the dipole moments don't cancel so it's a polar molecule overall.

What if the molecules surrounding a central atom were different but had extremely similar electronegativities? Could the molecule still be non polar?

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

Re: Polarity of non-symmetric atoms

Postby Lumbini Chandrasekera 1B » Tue Nov 27, 2018 6:01 pm

If they had really similar electronegativities, I believe they would technically cancel out and could be considered nonpolar there would still be a slight net dipole moment just to account for the fact that they are different elements.

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