Which of these elements has the greatest electron affinity?
A) K
B) Br
C) As
D) Ar
E) I

Question

Quizplus · Accepted Answer

Electron affinity generally increases across a period from left to right due to the increase in nuclear charge, which attracts electrons more strongly. Among the given options, bromine (Br) has the highest electron affinity because it is closest to filling its valence shell compared to the other elements listed, making it more energetically favorable to gain an electron.

Which of These Elements Has the Greatest Electron Affinity