C1 - Group 0

• What are the group 0 elements called?

  The Noble Gases
• Why are noble gases unreactive?

  • They have a full outer shell
  • They don't need to react with other atoms
• What are the properties of the Noble Gases (group 0)?

  • Non-flammable
  • Unreactive
  • Stable
  • Inert
• What happens to the boiling point of the Noble Gases (group 0) as you go down the group?

  Boiling point increases
• Noble gases exist as...

  single atoms
• Why does the boiling point of the Noble Gases (group 0) increase as you go down the group?

  1. As you go down the group, the atoms get larger
  2. So, the number of electrons increases
  3. So, intermolecular forces increase
  4. So, more energy needed to overcome them, so boiling point increases