Group 1, 7 & 8

• Group 1 Alkali Metals


  • Soft and silver-colored metals
  • Most reactive of all the metals
  • Only have one valence electron
• Alkali Metals


  1. Readily bond with other elements

  2. Transfer valence electron

  3. Become stable ion

  4. Full outer orbital
• Bond between ions


  Creates a new substance called a compound
• Elements get more reactive as you go down the group
• They are all reactive with water
• To prevent contact with water vapor in the air, they are stored in mineral oil
• Francium is the most reactive
• Group 7 Halogens


  • Non-metals
  • Found in all three states (gas, liquid, solid)
  • Most reactive of the non-metals
  • Have seven valence electrons
• Halogens


  1. Readily combine with other elements

  2. Take one valence electron from them

  3. Become stable ions (with full outer shells)
• Halogens become more reactive as you move up the group
• Fluorine is the most reactive
• Group 7 (Halogens)


  • Name
  • Symbol
  • Atomic Number
  • Element formula
  • State element
  • Colour element
  • Compounds
• Reactivity


  The ability of an element to undergo chemical reactions
• Noble gases


  Group 18 (8) non-metal elements that are unreactive gases
• Noble gases


  • They do not bond with other elements
  • They have full outer orbitals
• Since they don't react with other elements, noble gases do not form compounds</b>
• Group 8 (noble gases)


  • Name
  • Symbol
  • Atomic Number
  • Interesting fact
• The noble gases all have a full outer shell of electrons