7-B - Drawing Lewis Structures Polyatomic molecules with...

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1 Drawing Lewis Structures Polyatomic molecules with central atoms below the second row: In this compound there are 10 valence electrons on bromine; this is called an expanded octet . The extra pairs go into unfilled d orbitals.
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2 Drawing Lewis Structures Draw Lewis structures for: SF 4 SF 6 O 3 Draw Lewis structures for: CH 4 H 2 O CO 2 C 2 H 4
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3 Resonance Structures How is the double bond formed in O 3 ? The correct answer is that both are correct , but neither is correct by itself . O O O O O O O O O or Or from this  oxygen? Move lone pair from  this oxygen?
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4 Resonance Structures When multiple structures can be drawn, the actual structure is an average of all possibilities. The average is called a resonance hybrid . A straight double-headed arrow indicates resonance. O O O O O O
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Resonance Structures The nitrate ion, NO 3 , has three equivalent oxygen atoms, and its electronic structure is a resonance hybrid of three electron-dot structures. Draw them. Draw as many electron-dot resonance structures as
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This note was uploaded on 02/29/2012 for the course CHM 111 taught by Professor Colyer during the Summer '08 term at Wake Forest.

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7-B - Drawing Lewis Structures Polyatomic molecules with...

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