Formal Charge of Oxygen


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Noh_Jasmine_1J
Posts: 59
Joined: Thu Sep 27, 2018 11:15 pm

Formal Charge of Oxygen

Postby Noh_Jasmine_1J » Tue Nov 06, 2018 2:33 pm

why does oxygen usually have the negative formal charge in a lewis structure compared to carbon?

madisondesilva1c
Posts: 73
Joined: Thu Sep 27, 2018 11:16 pm

Re: Formal Charge of Oxygen

Postby madisondesilva1c » Tue Nov 06, 2018 2:49 pm

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.

Mayaal_Khan_4H
Posts: 41
Joined: Thu Sep 27, 2018 11:28 pm

Re: Formal Charge of Oxygen

Postby Mayaal_Khan_4H » Tue Nov 06, 2018 2:50 pm

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.

705192887
Posts: 57
Joined: Thu Sep 27, 2018 11:18 pm

Re: Formal Charge of Oxygen

Postby 705192887 » Tue Nov 06, 2018 4:21 pm

In general, the more electronegative atom should have the negative formal charge since the electrons are more strongly attracted/pulled to them.

kamalkolluri
Posts: 52
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Re: Formal Charge of Oxygen

Postby kamalkolluri » Tue Nov 06, 2018 5:10 pm

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.

Ricardo Martin 1J
Posts: 53
Joined: Thu Sep 27, 2018 11:15 pm

Re: Formal Charge of Oxygen

Postby Ricardo Martin 1J » Fri Nov 09, 2018 3:06 pm

Oxygen is more electronegative than carbon which attracts the electrons to them usually giving it a negative charge.

Rehan Chinoy 1K
Posts: 39
Joined: Thu Sep 27, 2018 11:25 pm

Re: Formal Charge of Oxygen

Postby Rehan Chinoy 1K » Sat Nov 10, 2018 3:50 pm

Also keep in mind that formal charge only applies to compounds and not individual atoms.


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