Answer:
The correct answer is option D, Sb
Explanation:
Atomic radius of As = 185 pm
Atomic radius of N = 155 pm
Atomic radius of P = 195 pm
Atomic radius of Sb = 206 pm
If we arrange the following element on the basis of their atomic radius in the increasing order , we will get the following
N (155 pm) < As (185 pm) < P (195 pm) < Sb (206 pm)
Thus among all the given element Sb has the largest atomic radius