1. Note: If the cation has a Roman numeral, you MUST include the correct Roman numeral!

2. Cu +2 copper (II)

3. iron (III) Fe +3

4. nickel (II) Ni +2

5. peroxide O 2  2

6. iron (II) Fe +2

7. NO 3  1 nitrate

8. Cr +3 chromium (III)

9. manganese (II) Mn +2

10. Fr +1 francium

11. zinc Zn +2

12. nitrite NO 2  1

13. Cr + 2 chromium (II)

14. nitric acid HNO 3

15. MnO 4  1 permanganate

16. copper (II) Cu +2

17. O22O22 peroxide

18. Fe +3 iron (III)

19. Mn +2 manganese (II)

20. Ni +2 nickel (II)

21. chromium (III) Cr +3

22. francium Fr +1

23. copper (I) Cu +1

24. Ra +2 radium

25. Zn +2 zinc

26. chromium (II) Cr + 2

27. nitrate NO 3  1

28. Fe +2 iron (II)

29. NO 2  1 nitrite

30. permanganate MnO 4  1

31. Cu +1 copper (I)

32. HNO 3 nitric acid

33. radium Ra +2