The electron affinity trend is:a. the same as the ionization energy trend and the atomic radius trendb. the same as the ionization energy trend but opposite the atomic radius trendc. the same as the atomic radius trend but opposite the ionization energy trendd. the opposite of the ionization energy trend and atomic radius trend

Answer:the same as the ionization energy trend but opposite the atomic radius trend

Explanation:

Electron affinity refers to the ability of an atom to accept electrons and form a negative ion. This ability increases across the period but decreases down the group. The atomic radius of elements decrease across the period as more nuclear charge is added without a corresponding increase in the number of shells. As size of the nuclear charge increases, the ionization also increases. Down the group, the addition of more shells increases the distance of the outermost electron from the nucleus hence ionization energy decreases and atomic size increases. Electron affinity has the same trend as ionization energy but an opposite trend to atomic radius hence the answer.