Question

noble gas don't combine with other elements to form molecule​

Answer 1

Answer:

noble gases have a stable outermost shell i.e they have eight electrons in their outermost shell thus following the octet rule.

hence they do need to loose or gain any electron .

thus they do not react with any other element.

... :)

Answer 2

Answer: They are inert.

Explanation:

They are inert because they have 0 valency. They don't have extra electrons in their valence shells.

Eg: Argon, Krypton