Non-polar molecules with different non-central atoms

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

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EvaLi_3J
Posts: 53
Joined: Wed Oct 02, 2019 12:16 am

Non-polar molecules with different non-central atoms

Postby EvaLi_3J » Sun Nov 24, 2019 12:16 pm

If a molecule has one central atom with no lone pairs, four other atoms with two of them being the same, and the other two being the same (central atom + 2 A atoms + 2 B atoms, five atoms in total in this molecule.), would it still be a non-polar molecule? In other words, even though we have two different types of non-central atoms, would they still cancel each other in terms of partial charges?

Kate Osborne 1H
Posts: 102
Joined: Fri Aug 30, 2019 12:16 am

Re: Non-polar molecules with different non-central atoms

Postby Kate Osborne 1H » Sun Nov 24, 2019 12:20 pm

It depends on the arrangement of the atoms, for example CH2Cl2 is polar.

claribel charway 1I
Posts: 55
Joined: Wed Sep 11, 2019 12:15 am

Re: Non-polar molecules with different non-central atoms

Postby claribel charway 1I » Sun Nov 24, 2019 12:38 pm

It depends where the two atoms are placed. If they same atoms aren’t opposite of each other their dipole moments won’t cancel out thereby making it polar.

005388369
Posts: 73
Joined: Sat Sep 28, 2019 12:16 am

Re: Non-polar molecules with different non-central atoms

Postby 005388369 » Sun Nov 24, 2019 12:52 pm

They would only be nonpolar if there was one central atom and all of the other atoms were the same element.


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