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• The International Union of Pure and
  Applied Chemistry (IUPAC) created a
  system of naming compounds.

• This system of naming chemical
  compounds is called nomenclature.

• Creates a worldwide system (like S.I.
• There are three “types” of naming, each
  defined by where the first ion in the
  compound is located.

• These are called “pink” “green” or “blue”
  sections by the color of the section.

• They could also be considered S, D or P
  respectively based on electron orbital.
          Pink Section
• When the first ion is from the pink section,
  say the whole name of the first ion, and
  replace the end of second with –ide.

• Ex: NaCl = Sodium Chloride

• Ex: MgF2 = Magnesium Fluoride

• Ex: K2O = Potassium Oxide
What is the formula for Li3N

       A.) Lithium Nitride
      B.) Trilithium Nitrogen
     C.) Lithium (III) Nitride
      D.) Lithium Trinitride
What is the name for CaO?

     A.) Carbon Monoxide
     B.) Calcium Oxygen
      C.) Calcium Oxide
      D.) Carbon Oxide
        Green Section
• The ions in the green section can have
  multiple charges.

• Therefore we have to discern their
  charges with some deduction.

• Ex: CuO . . Copper must have a charge of
  +2 here, because it has a 1 to 1 ratio with
  O that has a charge of -2.
        Green Section
• CuO continued. . .
• Since Copper has a charge of +2, you
  write the name as Copper (II) Oxide.

• Ex: Fe2O3 must have a charge of +3.
  Therefore it is Iron (III) Oxide.

• Ex: FeO is Iron (II) Oxide.
What is the formula for Manganese
           (II) Chloride?

             A.) Mn2Cl
             B.) MnCl
             C.) MgCl2
             D.) MnCl2
What is the name for SnO2

       A.) Tin (II) Oxide
      B.) Tin (IV) Oxide
        C.) Tin Oxide
      D.) Tin Oxide (II)
          Blue Section
• If you haven’t noticed, the last ion is
  always negatively charged (blue).

• When both are from the blue, it is a
  covalent bond.

• Since these can occur in many ways, we
  have to specify how many of each atom
  are in the compound.
Blue Section
1 – Mono    2 – Di

3 – Tri     4 – Tetra

5 – Penta   6 – Hexa

7 – Hepta   8 – Octa

9 – Non     10 - Deca
         Blue Section
• Simply use the appropriate prefix to
  describe how many atoms are present.

• The only rule is: Don’t put mono on the
  first atom!

• Ex: N2O4 Dinitrogen Tetroxide
• Ex: CO2 Carbon Dioxide
            Blue Section
• Si2Br6:

• CO:

• P2O5:

• B2Si:
What is the name of P4O6?

     A.) Phosphorus Dioxide
    B.) Phosphorus (IV) Oxide
   C.) Triphosphorus Pentoxide
  D.) Tetraphosphorus Hexoxide
What is the formula for Trinitrogen

             A.) N3O5
             B.) N2O4
             C.) N5O3
             D.) N2O4
      Polyatomic Ions
• Sometimes multiple atoms come together
  to form a single ion.

• These polyatomic ions can then bond with
  other ions to form compounds.

• Follow the previous rules for naming.
      Polyatomic Ions
• Ex: NaNO3 Sodium Nitrate

• Ex: CaSO4 Calcium Sulfate

• Ex: FePO4 Iron (III) Phosphate

• Ex: Ca(ClO3)2 Calcium Chlorate
1. If first ion is in pink write its element
   name and replace the end of the second
   with –ide
2. If first ion is in green, only use roman
   numerals to depict its charge. I, II, III, IV,
3. If first ion is in blue, then use the
   scientific prefixes: di, tri, tetra…..

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