Nomenclature. Chapter 8 CP Chemistry Spring 2013. Ionic Compounds. Atoms held together by ionic bonds. What are ionic bonds? Between metals and non-metals Transfer of electrons between atoms. Attraction between oppositely charged ions. Ionic Compounds. Some examples are: MgCl 2
The charge of the cation (metal ion) becomes the subscript of the anion.
The charge of the anion (non-metal ion) becomes the subscript of the cation.
**Do not include the charge in your formula.
2 + -2 = 0
So… the charge of Copper in this molecule must be +2.
The name is written:
Copper (II) Iodide
____ + -2 = 0
We are trying to find the charge of one Manganese atom.
The charge of one Manganese atom is +2, so the formula for Mn2Cl4 is:
Manganese (II) Chloride
2 x ? + -4 = 0
Mercury (I) Sulfide
Mercury = Hg+, Sulfur = S2-
Mono = 1
Di = 2
Tri = 3
Tetra = 4
Penta = 5
Hexa = 6
Hepta = 7
Octa = 8
Nona = 9
Deca = 10
Metal + Non-metal or presence of polyatomic ion
Includes Transition metal, Lead or Tin
Includes Alkali or Alkaline Earth Metal
Name using prefixes. Charges are not relevant.
Must include charge of transition metal in parentheses.
Name using binary ionic rules. No charge in parentheses needed.