Question

Noble gases does show inert behaviour because?

• A. They are mono atomic
• B. They are found in abundance
• C. The size of their atom is very small
• D. They are completely paired up and have stable electrons shells

Answer 1

The correct option is D They are completely paired up and have stable electrons shells

In general, noble gases are not very reactive, their chemical inertness is due to the fact that they have completely filled $n{s}^{2}n{p}^6$ electronic configuration of their valence shells.

The other reasons are very high ionization enthalpy and almost zero electron affinity.