Naming ionic compounds

1.- Name the metal first using the name that appears on the periodic table

2.- Name the non-metal second. The ending of its name gets changed to –ide.

Examples:

N – nitride

P – Phosphide

F – Fluorine

S – Sulphide

N – Nitride

O - Oxide

Examples:

CaCl₂ – Calcium Chloride

LiO – Litium Oxide

Mg₃P₂ – Magnesium Phosphide

**Exception**
  Given a formula in which the metal has more than one possible charges (view periodic table).
You must use a roman number in brackets after the metal's name. The roman number indicates the charge of the metal ion.

Examples:

FeBr₃ – Iron (III) Bromide

AuCl₃ – Gold (III) Chloride

CuO – Copper (II) Oxide