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6.1 covalent bonding
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6.1 covalent bonding

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Transcript

  • 1. 6.1
  • 2. 0 - + +0.5 - 6.12.1 Covalent>3.3 Bonding
  • 3. Covalent bonding
  • 4. Covalent bonding• Different from ionic.
  • 5. Covalent bonding• Different from ionic.
  • 6. Covalent bonding• Different from ionic.• Ionic is transferring electrons
  • 7. Covalent bonding• Different from ionic.• Ionic is transferring electrons
  • 8. Covalent bonding• Different from ionic.• Ionic is transferring electrons• Covalent is SHARING ELECTRONS.
  • 9. Hydrogen gas
  • 10. Hydrogen gas• Example of sharing, but what happens?
  • 11. Hydrogen gas• Example of sharing, but what happens? - + + -
  • 12. Hydrogen gas• Example of sharing, but what happens? - + + -
  • 13. Hydrogen gas• Example of sharing, but what happens? - + + -
  • 14. Hydrogen gas• Example of sharing, but what happens? - + + -
  • 15. Hydrogen gas• Example of sharing, but what happens? - + + - repulsions
  • 16. Hydrogen gas• Example of sharing, but what happens? - + + - repulsions
  • 17. Hydrogen gas• Example of sharing, but what happens? - + + - repulsions attractions
  • 18. Hydrogen gas• Example of sharing, but what happens? - + + - repulsions attractions
  • 19. Hydrogen gas• Example of sharing, but what happens? - + + - They SHARE the e-, repulsions creating a attractions molecular orbital.
  • 20. Electronegativity and bonding
  • 21. Electronegativity and bonding• Electronegativity: The ability of an atom to attract e-. – This causes some atoms to “share” electrons unequally.
  • 22. Electronegativity and bonding• Electronegativity: The ability of an atom to attract e-. – This causes some atoms to “share” electrons unequally.• How is this determined? – Find the difference (subtract) in electronegativity.
  • 23. 3 types of bonds
  • 24. Electronegativity differences 3 types of bonds
  • 25. Electronegativity differences 3 types of bonds
  • 26. Electronegativity differences 3 types of bonds 0 0.5
  • 27. Electronegativity differences 3 types of bonds 0 0.5
  • 28. Electronegativity differences 3 types of bonds 0 Nonpolar covalent 0.5
  • 29. Electronegativity differences 3 types of bonds 0 Nonpolar covalent 0.5 2.1
  • 30. Electronegativity differences 3 types of bonds 0 Nonpolar covalent 0.5 δ+ δ- 2.1
  • 31. Electronegativity differences 3 types of bonds 0 Nonpolar covalent 0.5 δ+ δ- polar covalent 2.1
  • 32. Electronegativity differences 3 types of bonds 0 Nonpolar covalent 0.5 δ+ δ- polar covalent 2.1>3.3
  • 33. Electronegativity differences 3 types of bonds 0 Nonpolar covalent 0.5 δ+ δ- polar covalent 2.1 + ->3.3
  • 34. Electronegativity differences 3 types of bonds 0 Nonpolar covalent 0.5 δ+ δ- polar covalent 2.1 + - ionic>3.3
  • 35. Determine the type of bond.
  • 36. Determine the type of bond.• NO2 ………………………………
  • 37. Determine the type of bond.• NO2 ………………………………
  • 38. Determine the type of bond.• NO2 ………………………………
  • 39. Determine the type of bond.• NO2 ………………………………
  • 40. Determine the type of bond.• NO2 ………………………………• CaCl2 ……………………………
  • 41. Determine the type of bond.• NO2 ………………………………• CaCl2 ……………………………
  • 42. Determine the type of bond.• NO2 ………………………………• CaCl2 ……………………………
  • 43. Determine the type of bond.• NO2 ………………………………• CaCl2 ……………………………
  • 44. Determine the type of bond.• NO2 ………………………………• CaCl2 ……………………………• CF4 ………………………………
  • 45. Determine the type of bond.• NO2 ……………………………… 3.4 - 3.0• CaCl2 ……………………………• CF4 ………………………………
  • 46. Determine the type of bond.• NO2 ……………………………… 3.4 - 3.0 = 0.40• CaCl2 ……………………………• CF4 ………………………………
  • 47. Determine the type of bond.• NO2 ……………………………… 3.4 - 3.0 = 0.40 = Nonpolar covalent• CaCl2 ……………………………• CF4 ………………………………
  • 48. Determine the type of bond.• NO2 ……………………………… 3.4 - 3.0 = 0.40 = Nonpolar covalent• CaCl2 …………………………… 3.2 - 1.0• CF4 ………………………………
  • 49. Determine the type of bond.• NO2 ……………………………… 3.4 - 3.0 = 0.40 = Nonpolar covalent• CaCl2 …………………………… 3.2 - 1.0 = 2.2• CF4 ………………………………
  • 50. Determine the type of bond.• NO2 ……………………………… 3.4 - 3.0 = 0.40 = Nonpolar covalent• CaCl2 …………………………… 3.2 - 1.0 = 2.2 = Ionic• CF4 ………………………………
  • 51. Determine the type of bond.• NO2 ……………………………… 3.4 - 3.0 = 0.40 = Nonpolar covalent• CaCl2 …………………………… 3.2 - 1.0 = 2.2 = Ionic 4.0 - 2.6• CF4 ………………………………
  • 52. Determine the type of bond.• NO2 ……………………………… 3.4 - 3.0 = 0.40 = Nonpolar covalent• CaCl2 …………………………… 3.2 - 1.0 = 2.2 = Ionic 4.0 - 2.6• CF4 ……………………………… = 1.4
  • 53. Determine the type of bond.• NO2 ……………………………… 3.4 - 3.0 = 0.40 = Nonpolar covalent• CaCl2 …………………………… 3.2 - 1.0 = 2.2 = Ionic 4.0 - 2.6• CF4 ……………………………… = 1.4 = Polar covalent