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Covalent Bonding

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Title: Covalent Bonding


1
Covalent Bonding
  • Lets Share

www.thefreedictionary.com
2
Covalent Bond
  • Is a force between atoms that share valence
    electrons

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3
Covalent Bonds occur between nonmetals
www.pslc.ws/macrog/ kidsmac/images/nacltoon.gif
4
AKA
  • Molecular Compound

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5
Diatomic Moleculesmade of 2 identical elements
with a covalent bond
http//nash.cbs.umn.edu/bs101/pix/covalent.gif
6
They occur in nature this way becausethey are
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more stable than the individual atom
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7
Diatomic Molecules
  • Fluorine F2
  • Iodine I2
  • Nitrogen N2
  • Chlorine Cl2
  • Hydrogen H2
  • Oxygen O2
  • Bromine Br2

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8
One way to remember is to think of a hockey stick
and puck.
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9
or
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  • Remember
  • HOBrFINCl
  • twins

10
First Step
Name the first element
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11
Use 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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12
Step Two
Name the second element and change the ending to
-ide
13
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USE A PREFIX
Even if there is only one atom of the second
element, you must use a prefix
14
MEMORIZE THESE PREFIXES
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15
HEXAgon
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TRIcycle
DECAde
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16
PENTAgon
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17
Polar vs. NonpolarCovalent Bonds
  • Polar-results from an unequal sharing of
    electrons
  • Non-polar-results from an equal sharing of
    electrons

18
To be or Not to be?
  • Subtract the electronegativities of the bonding
    elements

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