Hey can someone explain the reasoning behind the trend for electron affinity? I think it is because of the size and the effective force between the nucleus and the new electron but I am not exactly s

asked by @nathanielt2 • 10 months ago • Chemistry • 5 pts

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Electron affinity will increase or decrease depending on the electron configuration. You have to look at how the orbitals of the electron is filled which is why as your move down the periodic table electron affinity decreases since more of the orbitals are filled.

answered by @sh14585 • 10 months ago