Title: Covalent Bonding
1Covalent Bonding
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2Covalent Bond
- Is a force between atoms that share valence
electrons
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3Covalent Bonds occur between nonmetals
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4AKA
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5Diatomic Moleculesmade of 2 identical elements
with a covalent bond
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6They occur in nature this way becausethey are
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more stable than the individual atom
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7Diatomic Molecules
- Fluorine F2
- Iodine I2
- Nitrogen N2
- Chlorine Cl2
- Hydrogen H2
- Oxygen O2
- Bromine Br2
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8One way to remember is to think of a hockey stick
and puck.
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9or
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10First Step
Name the first element
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11Use a prefix to indicate the number of atoms
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If there is only one atom of the first element,
DO NOT use a prefix
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12Step Two
Name the second element and change the ending to
-ide
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USE A PREFIX
Even if there is only one atom of the second
element, you must use a prefix
14MEMORIZE THESE PREFIXES
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15HEXAgon
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TRIcycle
DECAde
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16PENTAgon
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17Polar vs. NonpolarCovalent Bonds
- Polar-results from an unequal sharing of
electrons - Non-polar-results from an equal sharing of
electrons
18To be or Not to be?
- Subtract the electronegativities of the bonding
elements
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