Question

the size of the atoms of inert gases are however larger than those of the preceding halogens
explain​

Answer 1

Answer:

Noble gases have comparatively higher atomic size than corresponding halogens because of the reason that vander waal's radii (present in noble gases) is much larger than ionic and covalent radii (present in other elements). * In case of inert gases, the atomic size is expressed in terms of Vanderwaal radius.

Answer 2

Explanation:

In case of inert gases, the atomic size is expressed in terms of Vanderwaal radius. * since they do not form covalent bonds while in case of other elements that is Halogen group that atomic size is expressed in terms of covalent radius, since by definition , Vanderwaal radius are larger than covalent radii.