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Formal Charge of Oxygen

Posted: Tue Nov 06, 2018 2:33 pm
by Noh_Jasmine_1J
why does oxygen usually have the negative formal charge in a lewis structure compared to carbon?

Re: Formal Charge of Oxygen

Posted: Tue Nov 06, 2018 2:49 pm
by madisondesilva1c
I had this question as well and from other students I have heard that the oxygen is more electronegative therefore it prefers to have the negative charge compared to Nitrogen if one of them has to have it.

Re: Formal Charge of Oxygen

Posted: Tue Nov 06, 2018 2:50 pm
by Mayaal_Khan_4H
The formal charge depends on the arrangement of electrons around the element. Maybe Oxygen was arranged in a way in which there were more lone pairs than shared pairs which caused it to have a negative formal charge.

Re: Formal Charge of Oxygen

Posted: Tue Nov 06, 2018 4:21 pm
by 705192887
In general, the more electronegative atom should have the negative formal charge since the electrons are more strongly attracted/pulled to them.

Re: Formal Charge of Oxygen

Posted: Tue Nov 06, 2018 5:10 pm
by kamalkolluri
As the others said, the electronegativity of Carbon is lower than Oxygen, which causes oxygen to "hog" the electrons more, giving it a negative formal charge.

Re: Formal Charge of Oxygen

Posted: Fri Nov 09, 2018 3:06 pm
by Ricardo Martin 1J
Oxygen is more electronegative than carbon which attracts the electrons to them usually giving it a negative charge.

Re: Formal Charge of Oxygen

Posted: Sat Nov 10, 2018 3:50 pm
by Rehan Chinoy 1K
Also keep in mind that formal charge only applies to compounds and not individual atoms.