Question

the radii of a,a+1,a-1 follows the order​

Answer 1

Answer:

answer in the attachment

Answer 2

Explanation:

1) Group 1 elements Li Na K Rb Cs Atomic radius (pm) 152, 186, 231, 244, 262 ii) The elements Li has the smallest atom (atomic radius 152 Pm) whereas the elements Cs has the largest atom (atomic radius 262 Pm).

iii) From this arrangement, we find that the atomic size (or radius) increase down the group.

Hope it well help you