2. Compound 2 or more elements combined in a fixed proportion Binary Composed of 2 elements

3. Ion Charged particle Atoms that lost or gained electrons Has more or less electrons than protons

4. Oxidation number A positive or negative number that indicates how many electrons an atom gains, loses, or shares to become stable

5. Ionic compounds are neutral The individual elements have charges but the compound is neutral The formula must have the same number of positive atoms as negative atoms

6. Group #Oxidation #Ion Examples 11+Na 1+, Li 1+, K 1+ 22+Mg 2+, Ca 2+, Ba 2+ 133+Al 3+ 153-N 3-, P 3- 162-O 2-, S 2-, Se 2- 171-F 1-, Cl 1-, Br 1-, I 1-

7. Naming Cations Name the metal by saying the element and adding the word “ion” Na 1+ sodium ion Mg 2+ magnesium ion Ca 2+ calcium ion K 1+ potassium ion

8. Naming Anions Name the non-metal by dropping the ending off the element name and adding “ide” F 1- fluoride (from fluorine) O 2- oxide (from oxygen) S 2- sulfide P 3- phosphide

9. Writing Names of Binary Ionic Compounds Both the cation and anion must be named Follow these steps

10. Write down the formula of the ionic compound. Let's say the ionic compound you're working with is NaCl Step 1

11. Write the name of the cation (metal). Na is sodium. So, write Sodium. Step 2

12. Write the name of the anion (nonmetal) with the "-ide" ending. Cl is chlorine. To add the "ide" ending, just drop the last syllable, “- ine," and add "-ide" instead. Chlorine becomes chloride. Step 3

13. Combine the names. NaCl can be written as sodium chloride. Step 4

14. Anions “ide” ending F-F- fluorideO 2- oxide Cl - chlorideS 2- sulfide Br - bromideN 3- nitride I-I- iodideP 3- phosphide

15. Li 2 S Lithium sulfide

16. Ag 2 S Silver sulfide

17. MgCl 2 Magnesium chloride

18. CsF Cesium Fluoride

19. K 2 Se Potassium Selenide

20. CaI 2 Calcium Iodide

21. K3NK3N Potassium Nitride

22. MgBr 2 Magnesium Bromide

23. Writing the Formula Sodium Chloride Cation Na 1+ Anion Cl 1- Na 1+ 1 Cl 1- 1 = NaCl

24. Writing the Formula Calcium chloride Cation Ca 2+ Anion Cl 1- Ca 2+ 1 Cl 1- 2 = CaCl 2

25. Writing the Formula Magnesium oxide Cation Mg 2+ Anion O 2- Mg 2+ 2 O 2- 2 = Mg 2 O 2 = MgO

26. Worksheet Review Naming Monatomic Ions

27. Magnesium Element Ion Ion Symbol Name Formula Mg Mg 2+ Magnesium ion

28. Chlorine Element Ion Ion Symbol Name Formula Cl Cl 1- Chloride

29. Oxygen Element Ion Ion Symbol Name Formula O O 2- Oxide

30. Boron Element Ion Ion Symbol Name Formula B B 3+ Boron ion

31. Lithium Element Ion Ion Symbol Name Formula Li Li 1+ Lithium ion

32. Neon Element Ion Ion Symbol Name Formula Ne No Ion it is a noble gas

33. Phosphorus Element Ion Ion Symbol Name Formula P P 3- Phosphide

34. Aluminum Element Ion Ion Symbol Name Formula Al Al 3+ Aluminum ion

35. Calcium Element Ion Ion Symbol Name Formula Ca Ca 2+ Calcium ion

36. Iodine Element Ion Ion Symbol Name Formula I I 1- Iodide

37. Nitrogen Element Ion Ion Symbol Name Formula N N 3- Nitride

38. Cesium Element Ion Ion Symbol Name Formula Cs Cs 1+ Cesium ion

39. Sulfur Element Ion Ion Symbol Name Formula S S 2- Sulfide

40. Fluorine Element Ion Ion Symbol Name Formula F F 1- Fluoride

41. Potassium Element Ion Ion Symbol Name Formula K K 1+ Potassium ion

42. Barium Element Ion Ion Symbol Name Formula Ba Ba 2+ Barium ion

43. Hydrogen Element Ion Ion Symbol Name Formula H H 1+ Hydrogen ion Hydride H 1-

44. Helium Element Ion Ion Symbol Name Formula He No Ion it is a noble gas

45. Worksheet Review Binary Ionic Compounds Writing the Formula And Naming

46. Sodium bromide Cation Na 1+ Anion Br 1- NaBr

47. Calcium chloride Cation Ca 2+ Anion Cl 1- CaCl 2

48. Magnesium sulfide Cation Mg 2+ Anion S 2- MgS

49. Aluminum oxide Cation Al 3+ Anion O 2- Al 2 O 3

50. Lithium phosphide Cation Li 1+ Anion P 3- Li 3 P

51. Cesium nitride Cation Cs 1+ Anion N 3- Cs 3 N

52. Potassium iodide Cation K 1+ Anion I 1- KI

53. Barium fluoride Cation Ba 2+ Anion F 1- BaF 2

54. Rubidium nitride Cation Rb 1+ Anion N 3- Rb 3 N

55. Barium oxide Cation Ba 2+ Anion O 2- BaO

56. K2OK2O Potassium oxide

57. MgI 2 Magnesium iodide

58. AlCl 3 Aluminum chloride

59. CaBr 2 Calcium bromide

60. Na 3 N Sodium nitride

61. LiF Lithium fluoride

62. Ba 3 P 2 Barium phosphide

63. Cs 2 S Cesium sulfide

64. SrF 2 Strontium fluoride

65. NaCl Sodium chloride