METALLIC BONDING

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7 Terms

1
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SEA OF ELECTRONS MODEL

  • type of metallic bonding (metals form cations)

  • positively charged metal ions → held together by a delocalized (free-moving) valence electrons SHARED

2
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Metallic bond

the electrostatic attraction between the free-moving electrons, with a negative electrical charge, and the protons in the metal cation.

  • Valence electrons move freely between the positively charged metal cations. 

3
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Why can metals bend w/o breaking

  • The electrons can rearrange themselves around the positive charges

4
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What do solids have

  • specific crystal structures (crystal lattice)

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Why do metals conduct electricity

  • because their electrons move freely in them.

6
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Why do metals have VERY high melting points

  •  because of their strong electrostatic forces

7
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Relationship btw charge and melting point

  • directly promotional (more protons→ stronger attraction→harder bond to break)