Charge of ions

Stage 1

Give the formula (including charge) of the following ions:

1. The ammonium ion?

2. The iron(II) ion?

3. The silver ion?

4. The iodide ion?

5. The sulfate ion?

Stage 2

6. The formula of zinc chromate is ZnCrO4.
What is the charge on the chromate ion?

7. The formula of silver hypochlorite is AgClO.
What is the charge on the hypochlorite ion?

8. The formula of sodium hydrogen carbonate is NaHCO3.
What is the charge on the hydrogen carbonate ion?

9. The formula of lithium hydrogen sulfate is LiHSO4.
What is the charge on the hydrogen sulfate ion?

10. The formula of manganese sulfide is MnS.
What is the charge on the manganese ion?

Stage 3

11. The formula of gold sulfate is Au2(SO4).
What is the charge on the gold ion?

12. The formula of cadmium iodide is CdI2.
What is the charge on the cadmium ion?

13. The formula of manganese nitrate is Mn(NO3)2.
What is the charge on the manganese ion?

14. The formula of tin carbonate is Sn2(CO3)4.
What is the charge on the tin ion?

15. The formula of lead hydrogen sulfide is Pb(HS)2.
What is the charge on the hydrogen sulfide ion?

Stage 1

1. NH4+

2. Fe2+

3. Ag+

4. I-

5. SO42-

Stage 2

6. 2-

7. 1-

8. 1-

9. 1-

10. 2+

Stage 3

11. 1+

12. 2+

13. 2+

14. 4+

15. 1-