A) Carbon is greater than oxygen
B) Oxygen is greater than fluorine
C) Iodine is greater than bromine
D) Bromine is less than chlorine.
Correct Answer: D
Solution :
Electron affinity increases across a period from left to right due to decrease in atomic size. Thus, electron affinity of C is less than O and electron affinity of O is less than that of F. Electron affinity decreases down a group due to increase in atomic size. Thus, electron affinity of I is less than Br and that of Br is less than Cl.
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