What are inert gases ? why are they so called ?
Inert gases : The elements of the zero group of the periodic table are known as inert gases. They are also known as noble or rare gases. The inert gases are six in numbers. They are, i) Helium (2He) ii) Neon (10Ne) iii) Argon (18Ar) iv) Krypton (36Kr) v) Xenon … Read more