Answer: Noble gases or inert gases
Explanation:
Noble gases have general electronic configuration of [tex]ns^2np^6[/tex].
The chemical property of a substance is determined by the loss or gain of electrons.
As the sub-shells of noble gases is fully filled and their octet is complete. Hence, it does not lose or gain any electron. Thus have zero electron affinity. Thus they are also called as inert gases and have few or no chemical properties.
