Inert gases are placed in a separate group in the Modern Periodic Table a) State the group number. b) How many valence electrons do most of them have? c) Why are they unreactive? d) Name any two inert gases.

Inert gases are placed in a separate group in the Modern Periodic Tabl

1.	Inert gases are placed in a separate group in the Modern Periodic Table a) State the group number. b) How many valence electrons do most of them have? c) Why are they unreactive? d) Name any two inert gases.
Answer» Solution :(a) GROUP number of INERT gases is 18. (B) 8. (c) They are unreactive since their valence shell is completely filled. Hence they have no tendency to lose or gain ELECTRONS by participating in a chemical reaction. (d) HELIUM and Neon (or any other group 18 elements).