period 3

• Sodium


  Reacts with cold water, fizzes around on surface
• Sodium reaction with water

  2 Na (s) + 2 H2O (l) 2 NaOH (aq) + H2 (g)
• Learn the equations
• Magnesium


  Reacts very slowly with cold water to form the hydroxide, but reacts more readily with steam to form the oxide
• Magnesium reaction with steam

  Mg (s) + H2O (g) MgO (s) + H2 (g)
• Elements that react with oxygen


  • Na
  • Mg
  • Al
  • Si
  • P
  • S