CIE IGCSE Chemistry

Revision Notes

9.2.3 Noble Gases

Noble Gases Properties & Electronic Structure

The Noble gases

  • The Noble gases are in Group VIII (or Group O) and have very low melting and boiling points
  • They are all monatomic, colourless gases
  • The Group 0 elements all have full outer shells
  • This electronic configuration is extremely stable so these elements are unreactive and are inert
  • Electronic configurations of the Noble gases:
    • He 2
    • Ne 2, 8
    • Ar 2, 8, 8
    • Kr 2, 8, 18, 8
    • Xe 2, 8, 18, 18, 8

 

The-Periodic-Table-of-noble-gases, IGCSE & GCSE Chemistry revision notesNoble gases are inert (unreactive) as they have a full outer shell of electrons so do not easily lose or gain electrons

Uses of the Noble gases

  • Helium is used for filling balloons and weather balloons as it is less dense than air and does not burn
  • Neon, argon and xenon are used in advertising signs
  • Argon is used to provide an inert atmosphere for welding
  • Argon is also used to fill electric light bulbs as it is inert

Author: Morgan

Morgan’s passion for the Periodic Table begun on his 10th birthday when he received his first Chemistry set. After studying the subject at university he went on to become a fully fledged Chemistry teacher, and now works in an international school in Madrid! In his spare time he helps create our fantastic resources to help you ace your exams.
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