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Metallic bonds


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Metallic bonds

  1. 1. Metallic Bonds
  2. 2. Metallic Bonds Alloys are the every-day metals that we encounter. They are a mixture of two or more types of metals.  Alloys are generally stronger and less reactive than the pure metals that they are made from.
  3. 3. Metallic Bonds Most metals have only 1,2 or 3 valence electrons. This means that they always “give up” their electrons (similar to an ionic bond) When atoms give up electrons, the atom becomes positive.
  4. 4. Metallic Bonds In metallic bonds, the atoms come together Once the atoms are together, their valence electrons move around them creating a sea of negativity. The atoms release their specific electrons and allow them to flow around all of the atoms bonded together.
  5. 5. Metallic Bonds These metallic bonds are held together by the positive metal ions and the sea of negative electrons around them. The more valence electrons an atom can add to the “sea” the stronger the metal becomes.
  6. 6. Metallic Bonds Because these bonds are not formed through a rigid structure, metals have special properties:  Malleability and Ductility  Luster (shiny)  Electrical conductivity  Thermal (heat) conductivity