This document discusses the noble or inert gases, a group of elements that includes helium, neon, argon, krypton, xenon, and radon. All of the noble gases have completely filled valence shells, do not form ions, form monoatomic molecules, and are generally unreactive under normal conditions. Radon is a radioactive member of this group.

1. NOBLE OR
INERT GASES
BY ;
UZAIR ATIF

3. CHEMICAL
PROPERTIES

4. These are all gases.
This group contains Helium (He), Neon (Ne), Argon (Ar),
Krypton (Kr), Xenon (Xe) and Radon (Rn).
All the elements in this group :
Have Completely filled valence shell.
Do not form any ions.
Form monoatomic molecules.
Are all unreactive under normal conditions.
Are all colorless or odorless.
Radon is a radioactive member of this group.

5. PHYSICAL
PROPERTIES