Group 0

• Why are noble gases chemically inert?

  • Noble gases have stable electronic configurations.
  • Outer electron shells are full.
  • Lack of tendency to gain, lose, or share electrons.
  • Do not form chemical bonds easily.
  • Low electronegativity due to full outer shells.
• The inert atmosphere from the noble gases is used in filament lamps as they are non-flammable which prevents the lamp from burning. Helium is less dense than air, it can be used to make balloons float. It is also non-flammable.
• • Atomic size increases down the group.
  • Boiling and melting points generally increase down the group.
  • Density increases down the group.
  • Solubility generally decreases down the group.