Name__________________________________________
Per _______ Date _______________________
7.1 & 7.2 Practice Worksheet A
Naming Ionic Compounds
Part 1: Naming monoatomic ions
The process of naming compounds is known to scientists as chemical ____________________ . In order to
name binary ionic compounds, we must first be able to name ions appropriately.
1. Name the following atoms & their corresponding cations:
A. Mg: __________________________
B. Al: __________________________
C. Rb: __________________________
Mg2+ : _________________________
Al3+: ________________________
Rb+ : _________________________
2. Name the following atoms & their corresponding anions. Remember: to drop the ending & add “ide”
D.
E.
F.
G.
I:
Cl:
Br:
S:
___________________________
___________________________
___________________________
___________________________
I- :
Cl- :
Br- :
S 2- :
__________________________
__________________________
__________________________
__________________________
3. Here’s some trickier ones you’ll need to remember:
N3- : _____________________ O2- : ______________________ P3- : _________________________
Part 2: Using the stock system for ions with more than one charge
Because transition metals can often take more than one charge, we must have a way to indicate this when
naming them. In truth, most ___________________ found in the p, d, and f sublevels can have more than one
charge. To indicate the specific charge one of these metals is taking in a given compound, we write the
__________________ of the metal, followed by a _________________ numeral in parenthesis.
Watch out!! The roman numeral indicates the ion’s _______________ , not how many ions are actually
present in the compound.
4. Practice naming the following ions with more than one charge:
A. Fe3+ : _____________________________
B. Pb2+ : _____________________________
C. Mn2+ : ____________________________
D. Sn4+ : _____________________________
Note: Use roman numerals for all transition metals with 3 exceptions: silver, zinc, and cadmium . This is
because their charges never change. Indicate their charges here:
______, ______,
_______
Part 3: Writing names of binary ionic compounds
In ionic nomenclature, it is not necessary to indicate the number of atoms anywhere in the compound. Just be
sure to watch out for ions that take more than one charge.
Try the following as practice:
1. Na2O : ___________________________________
2. MgBr2 : ___________________________________
3. Be2N3 : ___________________________________
4. FeN :
___________________________________
5. SnCl4 : ___________________________________
6. MnO : ___________________________________
7. CoCl3 : ___________________________________
8. ZnBr2 : ___________________________________
Part 4: Naming with polyatomic ions
Practice naming the following compounds that contain polyatomic ions. Polyatomic ions are simply named as
they are listed on your polyatomic sheet. Do not change their endings!
9. CaSO4 : _________________________________
10. CaCO3 : ________________________________
11. NH4Cl : _________________________________
12. Al2(SO3)3 : ______________________________
Challenging Problems
13. FeSO4 : _________________________________
14. CuOH : ________________________________
15. Cr(NO3)2 : ______________________________
16. KC2H3O2 : ______________________________