Group 1

• Metal + water -> ?

  Metal hydroxide + hydrogen
• How is the outer electron lost more easily?

  As you go down group 1 the atoms radis increases. This means the force of attraction between nucleus and electron decreases so outer electron is lost more easily
• Lithium + water -> lithium hydroxide + hydrogen


  Li + H20 -> LiOH + H2
• What is balanced equation if lithium reaction with water

  2Li + 2H20 -> 2LiOH + H2
• Group 1 metals are soft, low density(reason why they float above water in reactions) and low melting point
• As you go down group 1:

  • Metals become more reactive
  • Melting and boiling points decrease
• Why does reactivity increase in group 1


  number of electron shells in each atoms increase and outer electrons gets further from nucleus and it's attraction to nucleus decreases and is easily lost
• How does pottasium react?

  Forms ball,Catches on fire with a lilac flame,