Name ______________________________________________ pd ________ Date _________
POSITIVE and NEGATIVE IONS
The tables below list some common positive and negative ions. Refer to the table as you answer the questions.
Table 1: Positive Ions
Symbol
Ion Name
aluminum
Al3+
barium
cadmium
calcium
cesium
copper (I)
copper (II)
iron (II)
iron (III)
lithium
potassium
sodium
2+
Ba
Cd2+
Ca2+
Cs+
Cu+
Cu2+
Fe2+
Fe3+
Li+
K+
Na+
Table 2: Negative Ions
Symbol
Ion Name
x bromide
x
x
x
x
x
x
x
x
x
x
x
chloride
fluoride
iodide
nitride
oxide
phosphide
sulfide
BrClF1I1N3O2P3S2-
1. How many electrons does sodium lose when making a chemical bond? ____________________
2. How many electrons does phosphorus gain when making a chemical bond? ____________________
3. Name 2 metals that do not always lose the same number of electrons. How can you tell?
4. Name 4 nonmetals that could take the electron that lithium loses when forming bonds.
5. In a chemical compound, would you expect an oxide ion to be joined with one atom of calcium or one
atom of potassium? Why?
6. A molecule of sodium nitride would contain how many sodium ions? Why?
7. Predict the number of each atom needed to form an molecule of Potassium Sulfide.
Name ______________________________________________ pd ________ Date _________
NAMES AND FORMULAS WORKSHEET #1
Write the correct formula for each of the following compounds.
1. lithium iodide
2. calcium oxide
3. sodium sulfide
4. aluminum oxide
5. barium sulfide
6. aluminum chloride
7. lithium fluoride
8. cesium nitride
9. beryllium fluoride
10. potassium phosphide
Give the correct name for each of the following ionic compounds.
11. LiI __________________________________________________
12. Na2S
13. MgBr2
14. AIF3
15. BaO
16. BaI2
17. KCI
18. CaO
19. LiCI
20. BeS
Name ______________________________________________ pd ________ Date _________
Formula Worksheet 2
1. strontium iodide _____________________
2. rubidium nitride _____________________
3. manganese (IV) chloride_____________________
4. zinc fluoride_____________________
5. chromium (Ill) oxide_____________________
6. iron (II) phosphide_____________________
7. cobalt (II) sulfide _____________________
8. silver oxide _____________________
9. mercury (I) chloride _____________________
10. Mn2O3 _____________________
11. ScO2 ____________________
12. K2O ____________________
13. NaCl _____________________
14. ZnS_____________________
15. Al2S3 ____________________
16. Cr205
17. FeP
_____________________
_____________________
Name ______________________________________________ pd ________ Date _________
NAMES AND FORMULAS WORKSHEET #3
Write the correct formula for each of the following c ompounds.
1. mercury (II) sulfide
2. zinc oxide
3. sodium sulfide
4. copper (I) oxide
5. iron (111) bromide
6. tin (IV) oxide
7. aluminum oxide
8. manganese (I) sulfide
9. cobalt (II) phosphide
10. silver iodide
_
Give the correct name for each of the following ionic compounds.
11. Cr203
12. MnBr2
13. PbO
14. FeS
15. FeF2
16. Hgl
17. CuO
18. AgCl