N2O4 Lewis Structure

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N2O4 Lewis Structure

Postby HoganFenster2E » Tue Dec 01, 2015 6:45 pm

In the attached photo, why is the boxed Lewis Structure incorrect and the one below it correct for the best structure. All of the formal charges are zero in the boxed one. This came from the first final exam in the course reader.

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Re: N2O4 Lewis Structure

Postby Chem_Mod » Tue Dec 01, 2015 11:14 pm

The least electronegative atom goes in the center of a lewis structure. Since N is less electronegative, it is the central atom and therefore the 2 N's will be bonded instead of 2 O's.

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