Chapter 7 86A

• Conductivity


  Free moving charged particles
• Crystalline solids


  Repeated patterns
• If voltage is applied, cation and anions are free to migrate
• Attractive forces

  Very stable
• Ionic Bonding Properties 


  High Melting Points
• Ions


  Free to move when not locked up in a crystal
• When melted, the orderly crystalline structure breaks down
• High melting point due to very stable attractive forces
• 1. Conduct electric current Only when molten or dissolved (aq)
• Crystals

  Each Cl ion is surrounded by 6 Na ions and each Na is surrounded by 6 Cl ions
• 1. Crystalline solids at room temperature
• Ionic Compounds


  Often referred to as 'Salts'
• Voltage is applied

  Electricity flows when dissolved in (aq) solutions
• Flow of electrons
• Properties of Ionic Bonding

  Crystalline Solids at Room Temp
• Ionic Bonding Properties 


  Conduct Electrical Current ONLY when melted or dissolved (aq)
• Conductivity

  FREE MOVING CHARGED PARTICLES