Ionic Compounds

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  • Created by: Annie
  • Created on: 02-01-15 17:39
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  • Ionic Compounds
    • Ionic bonding - the metal is oxidised and the non-metal is reduced.
      • The no. of ions formed by a non-metal is equal to the group no. - 8
      • No. of ions on a metal = group number
    • Ionic Compounds
      • When metals react with non metals, the non metal atoms become negatively charged and the metal becomes positively charged
      • Ions in a Ionic Compound are arranged in a lattice structure.
      • There are strnong electrostatic charges between atoms in ionic compounds which mean that lots of energy is needed to split apart positive and negative ions.
        • They have high melting and boiling points
      • Solid Ionic compounds don't conduct heat because ions are held in place. Ions cannot move to conduct the current.
    • The greater the charge on an ion, the stronger the forces are holding them together.

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