element                Â
electron affinity
Cs                        Â
-45.5KJ/mole
Ar                             Â
0 Kj/mole
IÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
-295.2KJ/mole
Se                           Â
-195KJ/mole
As                            Â
-78KJ/mole
Rank the elements by electron affinity, from most positive to
most negative EA value
Ar , Cs , As , Se , I
Ar most positive
I is most negative
