More

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More

• s

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• Take two minutes to write down your understanding
  of what an ion, ionic compound, and ionic bond
  are.

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Covalent Bonds

• Covalent bonds are chemical bonds that result
  from the SHARING of valence electons.
• A molecule is formed when two or more atoms bond
  covalently.

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Lewis Structures

• No, not him
• Lewis Structures use electron-dot diagrams to
  show how electrons are arranged in molecules.
• For example

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(No Transcript)
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Try these

• PH3
• SH2
• HCl
• CCl4
• SiH4

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PH3
SH2
HCl
CCl4
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Live or DiatomicPunk?!

• Consider the existence of diatomic molecules.
• i.e. H2, N2, O2, F2, Cl2, Br2, and I2
• Please complete the Lewis Structure for each of
  these.

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Try these on for size
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S vs. 3.141592653589793238462643383279

• Sigma bonds (s) are single covalent bonds
• Pi bonds (p) are the second covalent bonds, so
  that if there is a double bond, the first is a
  sigma and the second is a pi.

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CH3OH
N2H2
NO2-
CH2F
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Naming Binary Molecular Compounds

• First things first
• First element is named first with entire formula
• Second element second
• With the ide suffix attached to the root
• Prefixes indicate numbers of atoms present

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Prefixer-upper
mono-
hexa-
di-
hepta-
tri-
octa-
tetra-
nona-
penta-
deca-
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Try-outs!

• H2O
• PO4
• NH3
• CO
• P2O5
• S4N2
• CO2