1. Ionic Bonding, NaCl

2. NaCl - Crystal Lattice

3. Covalent Bond

5. Gilbert Lewis (1875 – 1946)

6. Steps for drawing Lewis Structures

7. Boron – Unfilled Octet

8. Rx of ammonia with Boron Trifluoride

9. Sulfur – overfilled octet

10. Coordinate Covalent Bonding

11. Linear – 180 bond angle

12. Trigonal planar – 120° bond angle

13. Tetrahedral – 109.5° bond angle

14. Trigonal bipyramidal – 90°,120°

15. Octahedral - 90° bond angles

16. Trigonal pyramidal – 107° bond angles

17. Bent – 104.5° bond angle

18. Square Pyramidal – bond angle 90°

19. VSEPR Theory 3D Shapes

20. VSEPR Shapes (cont’d)

21. Steps of VSEPR Theory

22. Non-polar and Polar Covalent Bonds

23. Hydrogen fluoride

24. Electronegativity Trends

26. Electronegativity Values

27. Bond dipole

28. Water dipoles orient themselves to an electric field

29. Net Negative Dipole

30. No net dipole, CO 2

31. Molecular Shapes with No Net Dipole

32. Johannes van der Waals (1837 – 1923)

33. Dipole-Dipole Forces

34. Dipole-Dipole Force

35. Hydrogen Bonding in Water

36. Boiling Points of Covalent Hydrides

37. Fritz London (1900 – 1954)

38. London Dispersion Force

39. Noble Gases can freeze due to London Dispersion Forces

40. Boiling Point increases as Molar Mass Increases

41. Water Beading, Hydrogen Bonding

42. Surface Tension

43. Capillary Action

45. Viscosity – resistance to flow

46. Composite Materials

47. Electron Sea Theory

48. Molecular Crystal - Snowflake

49. Covalent Network Crystals - Diamonds

50. Diamond vs. Graphite

51. Different Structures of Carbon

52. Semiconductors

53. n – type semiconductor