2. The Periodic Table https://www.youtube.com/watch?v=0RR VV4Diomg&index=4&list=PL8dPuuaLjXt PHzzYuWy6fYEaX9mQQ8oGr

3. New Area of Focus: Periodic Table of the Elements. New Area of Focus: Periodic Table of the Elements. Copyright © 2010 Ryan P. Murphy

4. New Area of Focus: Periodic Table of the Elements. New Area of Focus: Periodic Table of the Elements. Copyright © 2010 Ryan P. Murphy

5. The Periodic Table of the Elements is a… The Periodic Table of the Elements is a… - - - - Copyright © 2010 Ryan P. Murphy

6. A chart of all the known elements. A chart of all the known elements. Copyright © 2010 Ryan P. Murphy

7. Is in order of increasing atomic number and mass. Is in order of increasing atomic number and mass. Copyright © 2010 Ryan P. Murphy

8. Is in order of increasing atomic number and mass. Is in order of increasing atomic number and mass. Copyright © 2010 Ryan P. Murphy

9. The table puts elements into groups with similar characteristics. The table puts elements into groups with similar characteristics. Copyright © 2010 Ryan P. Murphy

10. The table puts elements into groups with similar characteristics. The table puts elements into groups with similar characteristics. Copyright © 2010 Ryan P. Murphy

11. Allows us to recognize trends over the whole array of elements. Allows us to recognize trends over the whole array of elements. Copyright © 2010 Ryan P. Murphy

12. Horizontal row is called a Period Horizontal row is called a Period Copyright © 2010 Ryan P. Murphy

13. Horizontal row is called a Period. Horizontal row is called a Period. Copyright © 2010 Ryan P. Murphy Periods go at the end of sentences and sentences go across.

14. Horizontal row is called a Period. Horizontal row is called a Period. (Same # of electron orbitals) (Same # of electron orbitals) Copyright © 2010 Ryan P. Murphy

15. Horizontal row is called a Period. Horizontal row is called a Period. (Same # of electron orbitals) (Same # of electron orbitals) Vertical column is called a group/family. Vertical column is called a group/family. Copyright © 2010 Ryan P. Murphy

16. Horizontal row is called a Period. Horizontal row is called a Period. (Same # of electron orbitals) (Same # of electron orbitals) Vertical column is called a group/family. Vertical column is called a group/family. (Same # of valence electrons) (Same # of valence electrons) Copyright © 2010 Ryan P. Murphy

18. Three classes of Elements Three classes of Elements Metals, Metalloids, Nonmetals Metals, Metalloids, Nonmetals Copyright © 2010 Ryan P. Murphy

19. Metals are… Metals are… - - - - - Copyright © 2010 Ryan P. Murphy

20. Malleable: To be shaped / made into sheets. Malleable: To be shaped / made into sheets. Copyright © 2010 Ryan P. Murphy

21. Ductile: Made into wire. Ductile: Made into wire.

22. Good conductors of electricity. Good conductors of electricity. Copyright © 2010 Ryan P. Murphy

23. Have a high luster (shine). Have a high luster (shine). Copyright © 2010 Ryan P. Murphy

24. Conducts heat well. Conducts heat well. Copyright © 2010 Ryan P. Murphy

25. Most have a high density. Most have a high density. Copyright © 2010 Ryan P. Murphy

26. Most are solid. Most are solid. Hg (mercury is a liquid metal) Hg (mercury is a liquid metal) Copyright © 2010 Ryan P. Murphy

27. Metallically bonded. Metallically bonded. Copyright © 2010 Ryan P. Murphy

28. Many metals are reactive to chemicals. Many metals are reactive to chemicals. Copyright © 2010 Ryan P. Murphy

29. Many metals are reactive to chemicals. Many metals are reactive to chemicals. Copyright © 2010 Ryan P. Murphy

30. Many metals are reactive to chemicals. Many metals are reactive to chemicals. Copyright © 2010 Ryan P. Murphy

31. Almost 75% of all elements are classified as metals. Almost 75% of all elements are classified as metals. Copyright © 2010 Ryan P. Murphy

32. Alloys: Metals are easily combined Alloys: Metals are easily combined Copyright © 2010 Ryan P. Murphy

33. Metalloids / Semi metals: Properties of metals and non-metals Metalloids / Semi metals: Properties of metals and non-metals - - - Copyright © 2010 Ryan P. Murphy

34. Semi-conductors Semi-conductors Copyright © 2010 Ryan P. Murphy

35. Brittle Brittle Copyright © 2010 Ryan P. Murphy

36. Can have luster. Can have luster. Copyright © 2010 Ryan P. Murphy

37. Non-Metals Non-Metals Not metals Not metals Copyright © 2010 Ryan P. Murphy

38. Non-metals… Non-metals… - - - - - Copyright © 2010 Ryan P. Murphy

39. H and He are non-metals. H and He are non-metals. Copyright © 2010 Ryan P. Murphy

40. They are poor conductors. They are poor conductors. Copyright © 2010 Ryan P. Murphy

41. They are poor conductors. They are poor conductors. Copyright © 2010 Ryan P. Murphy

42. They are brittle (break when hit). They are brittle (break when hit). Copyright © 2010 Ryan P. Murphy

43. Dull in color. (No Luster) Dull in color. (No Luster) Copyright © 2010 Ryan P. Murphy

44. Poor conductors of heat. Poor conductors of heat. Copyright © 2010 Ryan P. Murphy

45. They may be transparent or translucent. They may be transparent or translucent. Copyright © 2010 Ryan P. Murphy

46. They exist as a… They exist as a… Copyright © 2010 Ryan P. Murphy

47. They exist as a… (s), They exist as a… (s), Copyright © 2010 Ryan P. Murphy Solid

48. They exist as a… (s), (l), They exist as a… (s), (l), Copyright © 2010 Ryan P. Murphy Solid Liquid

49. They exist as a… (s), (l), (g). They exist as a… (s), (l), (g). Copyright © 2010 Ryan P. Murphy Solid Liquid Gas

50. They exist as a… (s), (l), (g). They exist as a… (s), (l), (g). Copyright © 2010 Ryan P. Murphy Solid Liquid Gas S Sulfur Br Bromine Cl Chlorine

51. They have a low density. They have a low density. Copyright © 2010 Ryan P. Murphy

52. Valence electrons: Electrons in the outer most shell. Valence electrons: Electrons in the outer most shell. Copyright © 2010 Ryan P. Murphy

53. Valence electrons: Electrons in the outer most shell. Valence electrons: Electrons in the outer most shell. Copyright © 2010 Ryan P. Murphy How many valence electrons?

54. Valence electrons: Electrons in the outer most shell. Valence electrons: Electrons in the outer most shell. Copyright © 2010 Ryan P. Murphy

55. Valence electrons: Electrons in the outer most shell. Valence electrons: Electrons in the outer most shell. Copyright © 2010 Ryan P. Murphy 1

56. Valence electrons: Electrons in the outer most shell. Valence electrons: Electrons in the outer most shell. Copyright © 2010 Ryan P. Murphy 1

57. Valence electrons: Electrons in the outer most shell. Valence electrons: Electrons in the outer most shell. Copyright © 2010 Ryan P. Murphy 12

58. Valence electrons: Electrons in the outer most shell. Valence electrons: Electrons in the outer most shell. Copyright © 2010 Ryan P. Murphy 12

59. Valence electrons: Electrons in the outer most shell. Valence electrons: Electrons in the outer most shell. Copyright © 2010 Ryan P. Murphy 121

60. Valence electrons: Electrons in the outer most shell. Valence electrons: Electrons in the outer most shell. Copyright © 2010 Ryan P. Murphy 121

61. Valence electrons: Electrons in the outer most shell. Valence electrons: Electrons in the outer most shell. Copyright © 2010 Ryan P. Murphy 1214

62. Valence electrons: Electrons in the outer most shell. Valence electrons: Electrons in the outer most shell. Copyright © 2010 Ryan P. Murphy 1214

63. Valence electrons: Electrons in the outer most shell. Valence electrons: Electrons in the outer most shell. Copyright © 2010 Ryan P. Murphy 1214 5

64. Valence electrons: Electrons in the outer most shell. Valence electrons: Electrons in the outer most shell. Copyright © 2010 Ryan P. Murphy 1214 5

65. Valence electrons: Electrons in the outer most shell. Valence electrons: Electrons in the outer most shell. Copyright © 2010 Ryan P. Murphy 1214 5 1

66. Valence electrons: Electrons in the outer most shell. Valence electrons: Electrons in the outer most shell. Copyright © 2010 Ryan P. Murphy 1214 5 1 Total Electrons

67. Electron Configuration of Elements Elements can be sorted into Noble gases, Representative Elements, Transition Metals, or Inner Transition Metals based on their electron configurations.

68. The Representative elements The Representative elements are the A groups (1A-7A) The Representative elements are the A groups (1A-7A)

69. The number of valence electrons determines the group placement of an element on the periodic table. The number of valence electrons determines the group placement of an element on the periodic table. Copyright © 2010 Ryan P. Murphy

70. The number of valence electrons determines the group placement of an element on the periodic table. The number of valence electrons determines the group placement of an element on the periodic table. Copyright © 2010 Ryan P. Murphy

71. The number of valence electrons determines the group placement of an element on the periodic table. The number of valence electrons determines the group placement of an element on the periodic table. Copyright © 2010 Ryan P. Murphy

72. The number of valence electrons determines the group placement of an element on the periodic table. The number of valence electrons determines the group placement of an element on the periodic table. Copyright © 2010 Ryan P. Murphy

73. The number of valence electrons determines the group placement of an element on the periodic table. The number of valence electrons determines the group placement of an element on the periodic table. Copyright © 2010 Ryan P. Murphy

74. The number of valence electrons determines the group placement of an element on the periodic table. The number of valence electrons determines the group placement of an element on the periodic table. Copyright © 2010 Ryan P. Murphy

75. The number of valence electrons determines the group placement of an element on the periodic table. The number of valence electrons determines the group placement of an element on the periodic table. Copyright © 2010 Ryan P. Murphy

76. The number of valence electrons determines the group placement of an element on the periodic table. The number of valence electrons determines the group placement of an element on the periodic table. Copyright © 2010 Ryan P. Murphy

77. The number of valence electrons determines the group placement of an element on the periodic table. The number of valence electrons determines the group placement of an element on the periodic table. Copyright © 2010 Ryan P. Murphy

79. Electrons fill low energy orbitals (closer to the nucleus) before they fill higher energy ones.

91. Electrons fill low energy orbitals (closer to the nucleus) before they fill higher energy ones.

106. Octet Rule – Elements want 8 electrons in their outer shell (valence). Octet Rule – Elements want 8 electrons in their outer shell (valence). Copyright © 2010 Ryan P. Murphy

107. Octet Rule – Elements want 8 electrons in their outer shell (valence). Octet Rule – Elements want 8 electrons in their outer shell (valence). Elements with 8 valence electrons are more stable, and aren’t very reactive. Elements with 8 valence electrons are more stable, and aren’t very reactive. Copyright © 2010 Ryan P. Murphy

108. Noble Gases The Noble Gases (Group 8A) have 8 valence electrons. This is why they are also referred to as inert elements (meaning they are unreactive).