Naming Compounds

• Compound names


  Derived from the names of the elements from which they are formed
• Compounds ending in 'ide'


  • Contain the two elements indicated
• Compounds with the ending '-ite' or '-ate'


  • Oxygen is also present
• Sodium Bromide


  • Sodium
  • Bromide
• Calcium Carbonate


  • Calcium
  • Carbon
  • Oxygen
• Sodium Sulfite


  • Sodium
  • Sulfur
  • Oxygen
• Aluminium Hydroxide


  • Aluminium
  • Hydrogen
  • Oxygen
• Chemical formulae


  Represent the elements and the number of atoms of each element in a compound
• Simple two-element compounds


  Formulae are worked out by giving each element a valency number
• Valency numbers


  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8/0
  • F
• Valency number


  Directly relates to the number of bonds the element can make
• Groups in the Periodic Table

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8/0
  • F