Question

Name any noble gase and tell about that noble gase

Answer 1

argon
its atomic no is 18
it is already stable
it is in 18th group of periodic table
they are less reactive
they undergo no chemical reaction
its valency is 0
it is a noble gas
it is derived from Greek which means 'lazy' or 'inactive'

Answer 2

helium is a noble gas having one shell and it has2 electrons