## Formal Charge of Oxygen

$FC=V-(L+\frac{S}{2})$

Noh_Jasmine_1J
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### Formal Charge of Oxygen

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

Posts: 91
Joined: Fri Sep 28, 2018 12:16 am

### Re: Formal Charge of Oxygen

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: Fri Sep 28, 2018 12:28 am

### Re: Formal Charge of Oxygen

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: 77
Joined: Fri Sep 28, 2018 12:18 am

### Re: Formal Charge of Oxygen

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

kamalkolluri
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### Re: Formal Charge of Oxygen

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
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### Re: Formal Charge of Oxygen

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

Rehan Chinoy 1K
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Joined: Fri Sep 28, 2018 12:25 am

### Re: Formal Charge of Oxygen

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