1. Li2O Warm UP Lithium Oxide How would YOU name this compound… QUESTION
ANSWER

2. Chemical Names & Formulas
Chapter 9

3. What you will have to name…
Ionic Compounds
Ionic Compounds w/ Transition Metals
Covalent Compounds
Acids
Bases (Same as Ionic)

4. Naming Ions Cations Representative Metals Transition Metals
Same name as the element
Example: Na1+ sodium ion
Transition Metals
Same name as element with charge written as a roman numeral
Example: Cu2+ copper (II) ion
Polyatomic Ions
Do not change the name!
Leave the same as shown on Reference Table
Example: NH4+ ammonium ion

5. Naming Ions Anions Nonmetals Change the ending to -ide
Example: P3- phosphide ion
Polyatomic Ions
Do not change the name!
Leave the same as shown on Reference Table
Example: SO32- sulfite ion

6. Naming IONIC Compounds
Review: What is an Ionic Compound?
CATION + ANION
In order to name, take the name of the cation and add it to the name of the anion!
NaCl Na1+ - sodium ion
Cl1- - chloride ion
NaCl = sodium chloride

7. Practice MgCO3 Ra3P2 BeBr2 Al2O3 K2S
Name the following ionic compounds:
MgCO3
Ra3P2
BeBr2
Al2O3
K2S
Magnesium carbonate
Radium phosphide
Beryllium bromide
Aluminum oxide
Potassium sulfide

8. You need to know… How to determine the charge of the CATION!
If not a representative metal, you have to determine the charge by looking at the charge of the ANION!
Example: PbO2
Oxygen is the ANION and has a -2 charge.
There are 2 oxygens making the charge -4.
What does the charge of the Pb have to be?
WHY?! - Because it is a NEUTRAL compound.
HOW DO I KNOW? There isn’t a charge in the right corner.
You will ALWAYS know the charge of the ANION!
PbO2 – lead (IV) oxide

9. Which Transition Metals HAVE a specific charge?
Silver (Ag) - always 1+
Zinc (Zn) - always 2+
Cadmium (Cd) - always 2+
Therefore, you DO NOT have to write the roman numeral to represent their charges.

10. Which representative metals DON’T have a specific charge?
Lead (Pb) - can be 4+ or 2+
Tin (Sn) - can be 4+ or 2+
You MUST write the roman numeral to represent the charge for these two cations.

11. Naming Ionic Compounds with Transition Metals
In order to name an ionic compound containing a transition metal, you must write the charge of the cation as a roman numeral in parentheses.
Example: Fe2O3
Iron (III) oxide

12. Practice CuSO4 Ba3P2 LiBr FeO Ag2S Name the following ionic compounds:
Copper (II) sulfate
Barium phosphide
Lithium bromide
Iron (II) oxide
Silver sulfide