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Ionic Bond

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e- are transferred 1 metal and 1 nonmetal Large difference in electronegativity(1.7) Properties of Ionic Bonds composed of cations (+) and anions (-) simplest form ... – PowerPoint PPT presentation

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Title: Ionic Bond


1
Ionic Bond
  • e- are transferred
  • 1 metal and 1 nonmetal
  • Large difference
  • in electronegativity(gt1.7)

2
Properties of Ionic Bonds
  • composed of cations () and anions (-)
  • simplest form is the formula unit
  • high melting points
  • high boiling points
  • solids at room temp. (brittle)
  • conducts in solution or in molten state
  • soluble in H2O

3
Covalent Bond
  • e- are shared
  • 2 nonmetals
  • Small difference
  • in electronegativity (lt1.7)

4
Properties of Covalent Bonds
  • two elements share electrons between them
  • simplest form is the molecule
  • low melting points
  • low boiling points
  • some are gases at room temp.
  • nonconductors

5
Metallic Bond
  • Composed of metal cations
  • Sea of electrons model
  • Very compact, ordered structure

6
Properties of Metallic Bonds
  • Good conductors
  • Have luster (shine)
  • High melting point
  • High boiling point
  • Ductile
  • Malleable
  • Solids at room temperature
  • Can form alloys (stainless steel, sterling silver)
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