polar vs nonpolar

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Adrienne_4F
Posts: 64
Joined: Fri Sep 28, 2018 12:27 am

polar vs nonpolar

Postby Adrienne_4F » Wed Nov 14, 2018 11:06 pm

How can we differentiate between a polar and nonpolar molecule?

Jonathan Pai 2I
Posts: 121
Joined: Fri Sep 28, 2018 12:27 am

Re: polar vs nonpolar

Postby Jonathan Pai 2I » Wed Nov 14, 2018 11:13 pm

If charges favor a certain area more than any other area, it is polar. So usually if there is a lone pair hanging out polarity may occur because the lone pair pushes the bonds away more than a typical bond, thus the charges from the bonds are in a tighter local, thus not as equally spread out.

Soyoung Park 1H
Posts: 30
Joined: Sat Sep 29, 2018 12:15 am

Re: polar vs nonpolar

Postby Soyoung Park 1H » Thu Nov 15, 2018 12:17 am

What does it mean to be a highly distorted e-?

Stevin1H
Posts: 89
Joined: Fri Sep 28, 2018 12:17 am

Re: polar vs nonpolar

Postby Stevin1H » Thu Nov 15, 2018 12:51 am

A molecule is considered to be polar when there is an unequal sharing of electrons between the two atoms. This is shown through the unequal sharing of electrons due to the difference in the Electronegativity of the two atoms. The more electronegative atom will pull the shared electrons more toward itself, making it partial negative and this makes the other atom partial positive. A non polar molecule will have both atoms in the molecule have the same electronegativity so the electrons are shared equally.

Catherine Kim 3K
Posts: 31
Joined: Fri Sep 28, 2018 12:26 am

Re: polar vs nonpolar

Postby Catherine Kim 3K » Thu Nov 15, 2018 12:42 pm

The electronegativity of the atoms will be different in a polar bond. Yet, the electronegativity of the atoms will be equal in a nonpolar bond.

pamcoronel1H
Posts: 45
Joined: Fri Sep 28, 2018 12:25 am

Re: polar vs nonpolar

Postby pamcoronel1H » Thu Nov 15, 2018 5:28 pm

This is usually determined by looking at which atom in the molecule is more electronegative. For example, H2O is a polar molecule because the Oxygen is more electronegative, i.e. the electrons are more drawn towards the oxygen atom. This is because elelectronegativity is based on the atoms ionization energy, the energy needed to remove an electron, and electron affinity, both which increase across a period and decrease down a group.

RoopshaChatterjee 1G
Posts: 30
Joined: Fri Sep 28, 2018 12:17 am

Re: polar vs nonpolar

Postby RoopshaChatterjee 1G » Sun Nov 18, 2018 3:09 pm

What are some other factors besides electronegativity that can affect the polarity of a molecule? Do these same factors affect the individual bonds between elements in the molecule?


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