1. Unit: Chemical Names and Formulas
Day 3 - Notes
Unit: Chemical Names and Formulas
Formula to Name for Ionic Compounds

2. After today you will be able to…
Identify polyatomic and monatomic ions and name them properly
Write the chemical formulas and names for ionic compounds

3. Chemical Formula to Name
Recall the format for chemical formulas… (name of cation – metal) (name of anion – nonmetal) Examples: KBr CaI2 Na(SO4)
Potassium Bromide
Calcium Iodide
Sodium Sulfate

4. For elements with more than one possible charge (transition metals)… Use the charge on the anion to determine the charge on the cation! Example: Fe2(CrO4)3
+6/2=+3
-2(3)=-6
Iron (III) Chromate

5. Example: Sn(CO3)2 +4
-2(2)=-4
Tin (IV) Carbonate

6. Example: Cu3P
+3/3=+1 -3
Copper (I) Phosphide

7. Example: Co2(CrO4)3
+6/2=+3
-2(3)=-6
Cobalt (III) Chromate

8. Complete and hand in your exit ticket.
Questions?
Complete and hand in your exit ticket.