Formal Charge  [ENDORSED]

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Yen Ho Chou 1D
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Joined: Wed Feb 27, 2019 12:16 am

Formal Charge

Postby Yen Ho Chou 1D » Sun Jul 14, 2019 11:54 pm

I don't understand what formal charge is. Why is it only supposed to be either -1, 1 or 0

Ethan McCarthy 1F
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Joined: Wed Feb 27, 2019 12:17 am

Re: Formal Charge  [ENDORSED]

Postby Ethan McCarthy 1F » Sun Jul 14, 2019 11:58 pm

Formal charge is a charge calculated for each atom in a molecule, used to determine the most stable structure for the molecule. Formal charge must be close to zero (or +/-1) because neutral charges are the most favorable.

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Re: Formal Charge

Postby Chem_Mod » Mon Jul 15, 2019 12:11 pm

Yes, you could draw a structure with atoms containing formal charge greater than 2, but this would not be a very good representation of the true structure, as greater formal charge in either direction (positive or negative) makes the structure less stable. Neutral is most stable as said above

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