1. Using Bohr Diagrams to Show the Formation of Ionic Compounds

2. Metals Non- Metals

3. Metals Non- Metals

4. Metals Non- Metals Charge on the most commom ion of this element

5. Metals Non- Metals

6. Metals Non- Metals

7. Metals Non- Metals Metal + Non-metal  Ionic Compound

8. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

9. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n Valence e –

10. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n Valence e – I want to lose these 2 valence electrons!

11. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

12. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n I want to gain one electron here!

13. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

14. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

15. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

16. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

17. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

18. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

19. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

20. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

21. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

22. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

23. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

24. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

25. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

26. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

27. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

28. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

29. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n

30. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 12 protons

31. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 12 protons = +12

32. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 12 protons = +12 10 electrons

33. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 12 protons = +12 10 electrons = –10

34. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 12 protons = +12 10 electrons = –10 Net charge =

35. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 12 protons = +12 10 electrons = –10 Net charge = +2

36. 12 p 12 n Magnesium Atom Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n Net charge = +2

37. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n Net charge = +2

38. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n Net charge = +2

39. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n Net charge = +2

40. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+

41. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+

42. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+

43. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+ 9 protons

44. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+ 9 protons = +9

45. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+ 9 protons = +9 10 electrons

46. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+ 9 protons = +9 10 electrons = –10

47. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+ 9 protons = +9 10 electrons = –10 Net charge =

48. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+ 9 protons = +9 10 electrons = –10 Net charge = –1

49. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Atom 9 p 10 n 2+ 9 protons = +9 10 electrons = –10 Net charge = –1

50. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Ion 9 p 10 n 2+ 9 protons = +9 10 electrons = –10 Net charge = –1

51. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluorine Ion 9 p 10 n 2+ Net charge = –1

52. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluoride Ion 9 p 10 n 2+ Net charge = –1

53. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluoride Ion 9 p 10 n 2+ Net charge = –1

54. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluoride Ion 9 p 10 n 2+ Net charge = –1

55. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluoride Ion 9 p 10 n 2+ Net charge = –1

56. 12 p 12 n Ion Magnesium Ion Fluorine Atom 9 p 10 n Fluoride Ion 9 p 10 n 2+ –

57. 12 p 12 n Ion Magnesium Ion Fluoride Ion 9 p 10 n 2+ – Fluorine Atom 9 p 10 n This e – was added to this fluorine atom from the magnesium atom

58. 12 p 12 n Ion Magnesium Ion Fluoride Ion 9 p 10 n 2+ – Fluoride Ion 9 p 10 n –

59. 12 p 12 n Ion Magnesium Ion Fluoride Ion 9 p 10 n 2+ – Fluoride Ion 9 p 10 n –

60. 12 p 12 n Ion Magnesium Ion Fluoride Ion 9 p 10 n 2+ – Fluoride Ion 9 p 10 n – Bohr Diagram of Magnesium Fluoride

61. 12 p 12 n Ion Magnesium Ion Fluoride Ion 9 p 10 n 2+ – Fluoride Ion 9 p 10 n – Bohr Diagram of Magnesium Fluoride

62. We’ll do one more example.

63. We’re asked to draw a Bohr Diagram for the compound calcium oxide.

64. 20 p 20 n A neutral Ca atom Valence e –

65. 20 p 20 n A neutral Ca atom 8 p 8 n A neutral O atom Valence e –

66. 20 p 20 n A neutral Ca atom 8 p 8 n A neutral O atom Unpaired e –

67. 20 p 20 n A neutral Ca atom 8 p 8 n A neutral O atom Unpaired e – I need to gain 2 electrons! I need to gain 2 electrons at these locations!

68. 20 p 20 n A neutral Ca atom 8 p 8 n A neutral O atom Unpaired e – I need to gain 2 electrons! I need to gain 2 electrons at these locations!

69. 20 p 20 n A neutral Ca atom 8 p 8 n A neutral O atom I need to gain 2 electrons! I need to lose these 2 valence electrons!

70. 20 p 20 n A neutral Ca atom 8 p 8 n A neutral O atom

71. 20 p 20 n 8 p 8 n

72. 20 p 20 n 8 p 8 n

73. 20 p 20 n 8 p 8 n

74. 20 p 20 n 8 p 8 n

75. 20 p 20 n 8 p 8 n

76. 20 p 20 n 8 p 8 n

77. 20 p 20 n 8 p 8 n

78. 20 p 20 n 8 p 8 n

79. 20 p 20 n 8 p 8 n

80. 20 p 20 n 8 p 8 n A Ca 2+ ion with 20 protons and 18 electrons 2+

81. 20 p 20 n 8 p 8 n 2+ A Ca 2+ ion with 20 protons and 18 electrons An O 2– ion with 8 protons and 10 electrons 2–

82. 20 p 20 n 8 p 8 n 2+ A Ca 2+ ion with 20 protons and 18 electrons An O 2– ion with 8 protons and 10 electrons 2– Electron arrangement of Argon

83. 20 p 20 n 8 p 8 n 2+ A Ca 2+ ion with 20 protons and 18 electrons An O 2– ion with 8 protons and 10 electrons 2– Electron arrangement of Argon Electron arrangement of Neon

84. 20 p 20 n 8 p 8 n 2+ A Ca 2+ ion with 20 protons and 18 electrons An O 2– ion with 8 protons and 10 electrons 2– Electron arrangement of Argon & a stable octet Electron arrangement of Neon and a stable octet

85. 20 p 20 n 8 p 8 n 2+ 2– Bohr Diagram for Calcium Oxide