name three elements which have completely filled outermost shell . Write their common name and justify it .
3 elements that have completely filled outermost shell are: Helium, Neon and Argon.
Their common name is "Noble Gas". The gases are unreactive since they have completely filled valence shell and donnot gain, lose or share electrons. Hence, they are known as Noble Gases.
They are also known as "Inert Gases". "Inert" means "Inactive".
They are also known as "Rare Gases" since they are uncommon on the Earth.
Their common name is "Noble Gas". The gases are unreactive since they have completely filled valence shell and donnot gain, lose or share electrons. Hence, they are known as Noble Gases.
They are also known as "Inert Gases". "Inert" means "Inactive".
They are also known as "Rare Gases" since they are uncommon on the Earth.