Group 0 / Noble gases

• Noble gases

  • unreactive
  • inert
• Why are noble gases monatomic?

  • exist as single atoms
• Why are noble gases unreactive?

  • full outer shell of electrons
  • stable electronic structure
• Trend in boiling points in Group 0

  • increases down the group
  • strength of intermolecular forces increases
  • more energy is needed to overcome these forces
• Group 0 are metals or non-metals?

  • non-metals
• 3 properties of noble gases :

  • colourless
  • non-flammable
  • monatomic