what happens to electron affinity as you go down a group? decreases increases multiple - choice question

Brief Explanations:

Electron affinity is the energy change when an electron is added to a neutral atom in the gaseous state. As you go down a group in the periodic table, the atomic size increases, and the out - ermost electrons are farther from the nucleus. There is more shielding by inner - shell electrons. So, it becomes less favorable to add an electron, and electron affinity generally decreases.

Answer:

Decreases