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Unformatted text preview: Lewis formulas can also be drawn for polyatomic ions. One example is the ammonium ion , NH 4 + . Writing Lewis Formulas: The Octet Rule The octet rule states that representative elements usually attain stable noble gas electron configurations in most of their compounds. Lewis dot formulas are based on the octet rule. We need to distinguish between bonding (or shared) electrons and nonbonding (or unshared or lone pairs) of electrons. Writing Lewis Formulas: The Octet Rule...
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- Fall '07