Question

Which correctly summarizes the trend in electron affinity?

Answer 1

Answer: it tends to be more negative across a period

Step-by-step explanation:

Answer 2

The electron affinity of the elements generally increases across a period and sometimes decreases down a group in the periodic table. The electron affinity of an atom or molecule is the propensity for the particle to gain an electron. That would be an exothermic process for all non-noble gas elements.