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Rank the following elements by electron affinity, from most positive to most negative EA value. cesium, argon,...

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Chemistry

Rank the following elements by electron affinity, from mostpositive to most negative EA value.

cesium, argon, iodine, selenium, arsenic

Answer & Explanation Solved by verified expert
3.8 Ratings (495 Votes)

element                  electron affinity

Cs                          -45.5KJ/mole

Ar                               0 Kj/mole

I                                -295.2KJ/mole

Se                             -195KJ/mole

As                              -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
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