Explanation :
Group 18 elements of the periodic table are termed as noble gases. Other elements of group 18 are Helium, Neon, Argon, Krypton, Xenon and Radon.
Noble gases have completely filled shell and a very stable electronic configuration. So, noble gases are very unreactive. They never participate in chemical reactions. They are also termed as inert gases.
So, other elements are He, Ne, Ar, Kr, Xe, and Rn.
