1. UNIT 3 REVIEW

2. Elements  If the formula has ONE CAPITAL LETTER, it is an element, and its name is what is found on the periodic table (regardless of subscript)

3. IONS  Positive ions are named for the element  Na+ is the ‘sodium ion’  Negative ions end in ‘-ide’  Cl- is the “chloride ion”  Check table E for polyatomic ions (like NO 3 - )

4. all TWO element compounds (two capital letters) end in – IDE, whether molecular or ionic NF 3 nitrogen trifluoride CaCl 2 calcium chloride

5.  MOLECULAR COMPOUNDS: - start with a NON-METAL - start with a NON-METAL - use PREFIXES in the name - use PREFIXES in the name P 2 O 5 diphosphorus pentoxide diphosphorus pentoxide

6.  IONIC COMPOUNDS: - start with a METAL - start with a METAL - NO prefixes in name - NO prefixes in name - if given name write SYMBOL and CHARGE above names to find formula - if given name write SYMBOL and CHARGE above names to find formula

7. KF potassium fluoride Mg 2+ P 3- Mg 2+ P 3- magnesium phosphide Mg 3 P 2 Mg 3 P 2

8.  If the metal can have more than one charge, use ROMAN NUMERALS in the name: Cu 2+ Cl - Cu 2+ Cl - copper (II) chloride CuCl 2

9. if non-metal is POLYATOMIC ION, compound ends in –ITE or –ATE: KNO 3 potassium nitrate Na 2 SO 4 sodium sulfate

10.  write formula and then name for: N 2 O 4

11.  dinitrogen tetroxide

12. SeF 2

13.  selenium difluoride

14. B4CB4CB4CB4C

15. tetraboron monocarbide

16. MgI 2

17.  magnesium iodide

18. Ag 2 S

19.  silver sulfide

20. AlBr 3

21.  aluminum bromide

22. sodium oxide

23. Na 2 O

24. lithium phosphide

25. Li 3 P

26. O2O2

27. oxygen

28. beryllium arsenide

29. Be 3 As 2

30. iron(II) sulfide

31. FeS

32. chromium (III) fluoride

33. CrF 3

34. lead (IV) hydride

35. PbH 4

36. NiN

37. nickel (III) nitride

38. MnO 2

39. manganese (IV) oxide

40. TiCl 3

41. titanium (III) chloride titanium (III) chloride

42. LiNO 3

44. Oxide ion

45. O 2-

46. NH 4 F

47. ammonium fluoride ammonium fluoride

48. MgCO 3 MgCO 3

49. magnesium carbonate

50. calcium chlorate calcium chlorate

51. calcium ion calcium ion

52. Ca 2+ Ca 2+

53. Ca(ClO 3 ) 2 Ca(ClO 3 ) 2

54. lithium phosphate lithium phosphate

55. Li 3 PO 4 Li 3 PO 4

56. aluminum nitrate

57. Al(NO 3 ) 3

58. Pb(NO 3 ) 2

59. lead(II) nitrate lead(II) nitrate

60. nitrogen triiodide

61. NI 3

62. sodium sulfide

63. Na 2 S Na 2 S

64. K 3 PO 4

65. potassium phosphate

66. SrSO 4 SrSO 4

67. strontium sulfate

68. carbon tetrachloride

69. CCl 4

70. barium hydroxide

71. Ba(OH) 2

72. BBr 3

73. boron tribromide

74. nickel (III) carbonate

75. Ni 2 (CO 3 ) 3 Ni 2 (CO 3 ) 3

76. zinc oxide

77. ZnO

78. RbH

79. rubidium hydride