Exercise book Chemistry 2

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  • Created on: 06-10-12 12:27

Ionic Bonding/Flame Test

  • Ions are charged particles. So they can either be positive or negative. They either gain or lose electrons. Positive charged ions are called Cations and negatively charged ions are called Anions.
  • An ionic bond is a force of attraction between oppositely charged ions. This force is extremely strong and requires a large amount of energy to break it. Therefore all ionic compounds have high melting and boiling points, they are also crystals, they will conduct electricity ONLY WHEN IN SOLUTION OR IN MOLTEN STATE. They dissolve in water, they form lattice structure which means a regular arrangements of ions.
  • Soluble in water- All Sodium/Potassium/Ammonium salts. All Nitrates/Most Sulfates/Chlorides.
  • Insoluble in water-Most Hydroxides/Carbonates.Sliver Chloride and

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