Discussion: Ionic Compound Nomenclature

​Ionic Nomenclature

By Lan Vu

Multiple Choice

What is the name of BaO?

• Barium sulfate
• Barium hydroxide
• Barium oxide
• Barium carbonate

​Naming Ionic Compounds

• Type 1 Fixed Charges and polyatomic ions

  • name that cation (name of element) followed by the name of the anion with an -ide ending

Multiple Choice

What is the name of Fe₃PO₄?

• iron(II) phosphate
• ferrous phosphate
• iron phosphate
• iron(III) phosphate

​Naming Ionic Compounds

• Type 2: variable charges

  • name the cation and use Roman numerals to denote the charges follow by the anion like in type 1 and type 3

  • determine the charge of the cation by inferring from the charge of the anion

Multiple Choice

What is the name of Al₂ (SO₄)₃?

• Aluminum hydroxide
• Aluminum phosphate
• Aluminum chloride
• Aluminum sulfate

​Naming Ionic Compounds

• Type 3: Polyatomic ions

  • name that cation (name of element) followed by the name of the anion with an -ide ending

Match

Match the ionic formula of the compound with their name.

• Al(C₂H₃O₂)₃

• NaCl

• CaCO₃

• K₂SO₄

• CoCl₃

Aluminum acetate

Sodium chloride

Calcium carbonate

Potassium sulfate

Colbalt (III) Chloride

• Aluminum acetate

• Sodium chloride

• Calcium carbonate

• Potassium sulfate

• Colbalt (III) Chloride

Multiple Choice

What is the formula for potassium oxide?

• K2O
• KO
• K2O3
• K2O2

Multiple Choice

What is the formula for maganese (II) bromide?

• MnBr
• MnBr₃

• Mn₂Br

• MnBr₂

Multiple Choice

What is the formula for Aluminum chlorate?

• Al₂(ClO₃)₆

• AlCl₃

• Al(ClO₂)₃

• Al(ClO₃)₃

​Formula of Ionic Compounds

• Write the cation symbol and anion symbol

• Use the criss-cross method or LCM to determine the number of each ion to make the net charges neutral, equal to zero

• denote the number of each ion used as a subsript

Match

Match the name of these ionic compounds with their formula.

• Aluminum Phosphate

• Lead (II) Nitride

• Calcium Carbonate

• Sodium Sulfate

• Magnesium Chloride

AlPO₄

Pb₃N₂

CaCO₃

Na₂SO₄

MgCl₂

• AlPO₄

• Pb₃N₂

• CaCO₃

• Na₂SO₄

• MgCl₂