Classification Of Elements And Periodicity In Properties Question 148
Question: The correct order of electron affinities of N, O, S and Cl are
Options:
A) $ O<N<Cl<S $
B) $ O<S<Cl<N $
C) $ O=Cl<N=S $
D) $ N<O<S<Cl $
Show Answer
Answer:
Correct Answer: D
Solution:
[d] Generally the electron affinity increases in a period from left to right and decreases in a group from top to bottom. However, the electron affinity of some elements of II period are less than that of the elements of III period, due to small size of atoms of II period. Thus, the order of electron affinity is $ N<O<S<Cl $ .
BETA
