Chapter 11 Chemical Bonds: The Formation of Compounds from ...

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ex.11.11 write the Lewis structure for CO 2 step 1 total valence electrons = 4 + 2 × 6 = 16 step 2 O C O O : C : O step 3 16 – 4 = 12 step 4 . . . . . . . . . . . . . . . . : O : C : O : : O : C : O : : O : C : O : ·· ·· ·· ·· I II III step 5 : O :: C :: O : : O = C = O: 18
11.8 Complex Lewis structures for some molecules or polyatomic ions, no single Lewis structure consistent with all characteristics and bonding information can be written ex. nitrate ion NO - 3 step 1 total valence electrons = 5 + 3 × 6 + 1 = 24 step 2 O O· · O N O O : N : O step 3 24 - 6 = 18 step 4 · · : O electron deficient ·· ·· ·· : O : N : O : ·· ·· ·· step 5 · · - · · - · · - : O : O : : O : ·· || ·· ·· ·· ·· ·· ·· ·· : O : N : O : : O =N : O : : O : N= O : ·· ·· ·· ·· there are three possible Lewis structures a molecule or ion that has multiple correct Lewis structures shows resonance each of these Lewis structures is called a resonance structure 19
Page 1 and 2: Chapter 11 Chemical Bonds: The Form
Page 3 and 4: 2. atomic radius • the increase i
Page 5 and 6: 11.2 Lewis structures of atoms meta
Page 7 and 8: consider Na and Cl atoms react with
Page 9 and 10: ex. 11.2 how Mg and Cl combine to f
Page 11 and 12: 11.5 The covalent bond: sharing ele
Page 13 and 14: 11.6 Electronegativity the bond for
Page 15 and 16: carbon dioxide CO 2 is nonpolar O =
Page 17: ex. 11.10 write the Lewis structure
Page 21 and 22: 11.9 Compounds containing polyatomi
Page 23 and 24: 11.11 The valence shell electron pa
Page 25: ex. 11.15 predict the molecular sha

Chapter 11 Chemical Bonds: The Formation of Compounds from ...

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