Unit b matter and chemical change notes(naming ionic compounds)

1. Naming Ionic
Compounds

2. Naming Ionic Compounds
Step 1: Determine if the substance is a molecular or an ionic compound
Example: NaCl (Metal & Non-metal)
Step 2: Write the full name of the metal first
Na = Sodium
Step 3: Add the name of the non-metal second
Cl = chlorine
Step 4: Drop the ending of the non-metal, the “ine”, and change it to “ide”
chlorine  chloride
NaCl = Sodium chloride

3. Naming Ionic Compounds
** Step 5. If the metal is not from group 1 or 2 (i.e.3-17) we may need to
determine and state the ionic charge of the metal.
For example SnO2.
There are 2 Oxygen atoms and 1 tin atom.
Each oxygen atom has a 2- charge (see common ion charges). That is 4-
charges in total.
There is only 1 tin atom and its charge must equal and
balance the negatives. The tin must have a 4+ charge, one of its common
ion charges (top right of the box).

4. Naming Ionic Compounds
For example SnO2.
Sn (charge +4) ----- O (charge -2)x2
Convert the ionic charge of the metal into a Roman
numerals number. (4 is IV)
Insert the Roman numeral between the metal and non
metal using brackets
Ex. Tin (IV) oxide

5. Simple Examples
Together:
Rb2O
Rubidium oxide

6. Simple Examples
Try Yourself:
CaO
Calcium Oxide
Sr3N2
Strontium Nitride
BaBr2
Barium Bromide

7. Complex Examples
Together:
Cu2O
Copper (I) oxide

8. Complex Examples
Try Yourself:
CrN
Chromium (III) nitride
Nb3P5
Niobium phosphide
Mn2O7
Manganese (VII) oxide