sábado, 13 de octubre de 2012

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