Question

What is the valency of noble gases

Give examples of noble gases ?

Answer 1

Valency =0
For example ...
heliums electronic configuration is 2 ..
Argons electronic configuration if 2,8,8
Neons electronic configuration is 2,8
These complete the outermost shell

Answer 2

noble gases dont have  any valency because their outermost shells have no valence electrons which it can lose or no free space to gain any electron .......... eg; helium , argon , neon , krypton .... they are present in the 18th group