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Chapter 7 “Ionic and Metallic Bonding”
Section 7.1 - Ions ,[object Object],[object Object]
Section 7.1 - Ions ,[object Object],[object Object]
Section 7.1 - Ions ,[object Object],[object Object]
Section 7.1 - Ions ,[object Object],[object Object]
Valence Electrons are…? ,[object Object],[object Object],[object Object],[object Object]
Keeping Track of Electrons ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Electron Dot diagrams are… ,[object Object],[object Object],[object Object],[object Object],[object Object],X
The Electron Dot diagram for Nitrogen ,[object Object],[object Object],N ,[object Object],[object Object],[object Object]
The Octet Rule ,[object Object],[object Object],[object Object],[object Object]
Formation of Cations ,[object Object],[object Object],[object Object],[object Object],[object Object]
Electron Dots For Cations ,[object Object],Ca
Electron Dots For Cations ,[object Object],[object Object],Ca
Electron Dots For Cations ,[object Object],[object Object],[object Object],Ca 2+ NO DOTS  are now shown for the cation. This is named the “calcium ion”.
Electron Dots For Cations ,[object Object],[object Object],[object Object],[object Object],Scandium (II) ion Scandium (III) ion Sc =  Sc 3+
Electron Dots For Cations ,[object Object],[object Object],[object Object],[object Object]
Electron Dots For Cations ,[object Object],[object Object]
Electron Configurations:  Anions ,[object Object],[object Object],[object Object],[object Object],[object Object]
Electron Dots For Anions ,[object Object],[object Object],P 3- (This is called the “phosphide ion”, and  should show  dots)
Stable Electron Configurations ,[object Object],[object Object],[object Object],[object Object],Ar
Section 7.2 Ionic Bonds and Ionic Compounds ,[object Object],[object Object]
Section 7.2 Ionic Bonds and Ionic Compounds ,[object Object],[object Object]
Ionic Bonding ,[object Object],[object Object],[object Object],[object Object],[object Object]
Ionic Compounds ,[object Object],[object Object]
Ionic Bonding Na Cl The metal (sodium) tends to lose its one electron from the outer level. The nonmetal (chlorine) needs to gain one more to fill its outer level, and will accept the one electron that sodium is going to lose.
Ionic Bonding Na + Cl  - Note: Remember that NO DOTS are now shown for the cation!
 
Ionic Bonding ,[object Object],Ca P Lets do an example by combining calcium and phosphorus:
Ionic Bonding Ca P
Ionic Bonding Ca 2+ P
Ionic Bonding Ca 2+ P Ca
Ionic Bonding Ca 2+ P  3-  Ca
Ionic Bonding Ca 2+ P  3- Ca P
Ionic Bonding Ca 2+ P  3- Ca 2+ P
Ionic Bonding Ca 2+ P  3- Ca 2+ P Ca
Ionic Bonding Ca 2+ P  3- Ca 2+ P Ca
Ionic Bonding Ca 2+ P  3- Ca 2+ P  3- Ca 2+
Ionic Bonding = Ca 3 P 2 Formula Unit This is a  chemical formula , which shows the  kinds  and  numbers of atoms  in the smallest representative particle of the substance. For an ionic compound, the smallest representative particle is called a:  Formula Unit
Properties of Ionic Compounds ,[object Object],[object Object],[object Object],[object Object],[object Object]
 
- Page 198 Coordination Numbers: Both the sodium and chlorine have 6 Both the cesium and chlorine have 8 Each titanium has 6, and each oxygen has 3 NaCl CsCl TiO 2
Do they Conduct? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
- Page 198 The ions are  free to move  when they are  molten  (or in  aqueous solution ), and thus they are able to conduct the electric current.
Section 7.3 Bonding in Metals ,[object Object],[object Object]
Section 7.3 Bonding in Metals ,[object Object],[object Object]
Section 7.3 Bonding in Metals ,[object Object],[object Object]
Metallic Bonds are… ,[object Object],[object Object],[object Object]
Sea of Electrons ,[object Object],[object Object],+ + + + + + + + + + + +
Metals are  Malleable ,[object Object],[object Object],[object Object]
- Page 201 1) Ductility 2) Malleability Due to the mobility of the valence electrons, metals have: and Notice that the  ionic crystal   breaks  due to ion repulsion!
Malleable Force + + + + + + + + + + + +
Malleable ,[object Object],Force + + + + + + + + + + + +
Ionic solids are brittle Force + - + - + - + - + - + - + - + -
Ionic solids are brittle ,[object Object],Force + - + - + - + - + - + - + - + -
Crystalline structure of metal ,[object Object],[object Object],[object Object],[object Object],[object Object]
Crystalline structure of metal ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Alloys ,[object Object],[object Object],[object Object],[object Object],[object Object]
Why use alloys? ,[object Object],[object Object],[object Object],[object Object]
More about Alloys… ,[object Object],[object Object],[object Object],[object Object]
End of Chapter 7

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Chemistry - Chp 7 - Ionic and Metallic Bonding - PowerPoint

  • 1. Chapter 7 “Ionic and Metallic Bonding”
  • 2.
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  • 25. Ionic Bonding Na Cl The metal (sodium) tends to lose its one electron from the outer level. The nonmetal (chlorine) needs to gain one more to fill its outer level, and will accept the one electron that sodium is going to lose.
  • 26. Ionic Bonding Na + Cl - Note: Remember that NO DOTS are now shown for the cation!
  • 27.  
  • 28.
  • 31. Ionic Bonding Ca 2+ P Ca
  • 32. Ionic Bonding Ca 2+ P 3- Ca
  • 33. Ionic Bonding Ca 2+ P 3- Ca P
  • 34. Ionic Bonding Ca 2+ P 3- Ca 2+ P
  • 35. Ionic Bonding Ca 2+ P 3- Ca 2+ P Ca
  • 36. Ionic Bonding Ca 2+ P 3- Ca 2+ P Ca
  • 37. Ionic Bonding Ca 2+ P 3- Ca 2+ P 3- Ca 2+
  • 38. Ionic Bonding = Ca 3 P 2 Formula Unit This is a chemical formula , which shows the kinds and numbers of atoms in the smallest representative particle of the substance. For an ionic compound, the smallest representative particle is called a: Formula Unit
  • 39.
  • 40.  
  • 41. - Page 198 Coordination Numbers: Both the sodium and chlorine have 6 Both the cesium and chlorine have 8 Each titanium has 6, and each oxygen has 3 NaCl CsCl TiO 2
  • 42.
  • 43. - Page 198 The ions are free to move when they are molten (or in aqueous solution ), and thus they are able to conduct the electric current.
  • 44.
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  • 50. - Page 201 1) Ductility 2) Malleability Due to the mobility of the valence electrons, metals have: and Notice that the ionic crystal breaks due to ion repulsion!
  • 51. Malleable Force + + + + + + + + + + + +
  • 52.
  • 53. Ionic solids are brittle Force + - + - + - + - + - + - + - + -
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