Question

Describe the theory associated with the radius of an atom as it

Whenever a list of radii is given, we find that the size of the noble gases is larger than the size of their adjacent halogens. The reason is

The correct order of radii is

Among the elements of the second period Li to Ne pick out the element: (i) with the highest first ionisation energy (ii) with the highest electronegativity (iii) with the largest atomic radius Give the reason for your choice.