Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Which is correct increasing order of their tendency of the given elements to form 
ion?
A
Bi > Sb > As > P > N
B
Bi < Sb < As < P < N
C
N < P < Sb < Bi < As
D
Bi > Sb 
N 
P > As
N P > As
Text Solution
Verified by ExpertsThe correct answer is:
B
On moving down the group, the stability of – 3 oxidation state decreases. This is due to the following reasons (i) On descending a group the size of the atom or ion increases. As a result, attraction of the nucleus per newly added electron decreases (ii) A large anion cannot fit easily into lattice of a small cation. (iii) As the negative charge on the ion increases, it becomes more and more susceptible to polarization.
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