Which element has the most favorable (most negative)electron affinity?
A)K
B)Be
C)I
D)Ne

Question

Quizplus · Accepted Answer

Iodine (I) has the most favorable (most negative) electron affinity among the options given. Electron affinity generally increases across a period and decreases down a group in the periodic table. Iodine, being closer to the halogens which are known for their high electron affinities, has a more favorable electron affinity compared to potassium (K), beryllium (Be), and neon (Ne). Neon, being a noble gas, has a complete valence shell and does not readily accept electrons, making its electron affinity less favorable.

Which Element Has the Most Favorable (Most Negative)electron Affinity