Formal Charge

Formal Charge - • Formal Charge = grp number –(number...

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Formal Charge Calculation of a formal charge on a molecule is a mechanism for determining correct Lewis structures The formal charge is the hypothetical charge on an atom in a molecule or polyatomic ion. The best Lewis structures will have formal charges on the atoms that are zero or nearly zero. Rules for Assigning Formal Charge
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Unformatted text preview: • Formal Charge = grp number – (number of bonds + number of unshared e-) • An atom that has the same number of bonds as its periodic group number has a formal charge of 0. • a. The formal charges of all atoms must sum to 0 in molecules. b. The formal charges must sum to the ion’s charge for a polyatomic ion. •...
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This note was uploaded on 10/21/2011 for the course CHEM 1211 taught by Professor Atwood during the Fall '07 term at UGA.

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