group 0

• NOBLE GASES:

  • NOBLE GASES, also known as GROUP 0 elements, are unique due to their COMPLETE OUTER ELECTRON SHELLS.
  • This makes them INERT and COLOURLESS at room temperature.
• • This group includes Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn).
  • Noble gases do NOT typically react with other elements because their outer electron shells are full, making them STABLE and UNREACTIVE.
  • They do NOT form molecules and exist as SINGLE MONATOMIC ATOMS. This is because their full outer shell makes them STABLE.
  • They are NON-FLAMMABLE, meaning they do not catch fire, which is a significant safety feature in various applications.
• Trends in Noble Gases:

  • The BOILING POINTS of Noble Gases INCREASE down the group, as RELATIVE ATOMIC MASS INCREASES.
  • This rise in boiling points is due to the INCREASING number of ELECTRONS, which increases INTERMOLECULAR FORCES that need to be overcome to change state from liquid to gas.
  • By knowing the trend in BOILING POINTS, you can PREDICT the boiling points of some of the Noble Gases.