Ionic Nomenclature

1
Ionic Nomenclature

• System of naming ionic compounds

2
Ionic bonds

• Forms between metals and nonmetals
• or it contains polyatomic ions
• They form crystal lattices
• with very high
• melting and boiling points

3
Rules Name to formula

• 1. Write symbols (cation always first)
• 2. Determine charge-
• (periodic table, roman numeral, memorize)
• 3. The algebraic sum of the charges must add up
  to ZERO!
• 4. Use subscripts to represent the of each ion
• 4. Simplify subscripts when necessary

4
You try it!!

• Calcium hydroxide
• Ca OH
• Ca 2 OH -1
• 1 (2) 2 (-1) 0
• Ca (OH)2

5
Again

• Gold (III) chlorite
• Au ClO2
• Au 3 (why?) ClO2 -1
• 1 (3) 3 (-1) 0
• Au(ClO2)3

6
Resting slide

• Unhappy
• feet

7
One more

• Tin (IV) dichromate
• Sn 4 Cr2O7 -2
• 2 (4) 4(-2) 0
• Sn2(Cr2O7)4
• Reduce Sn(Cr2O7)2

8
Rules Formula to name

• 1. Write the name of each ion
• 2. For the anion drop the ending and add ide
• 3. Use the charge of the anion to determine the
  charge for the roman numeral if needed

9
Example 1

• Cu2SO4
• Copper sulfate
• Needs a roman numeral
• 2 ( X ) 1 (-2) 0
• Copper must be 1
• Copper (I) sulfate

10
Again!

• PbO2
• Lead oxide
• Lead needs a roman numeral
• 1(X) 2 (-2) 0
• Lead must be 4
• Lead (IV) oxide