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Which one of the following pairs of elements has more favorable (negative) electron affinity, higher ionization energy, and larger size (atomic radius)? a) K and Cs, b) Te and Br, and c) Ge and Se?
Based on their positions in the periodic table, predict which atom of the following pairs will have the smaller first ionization energy: (a) Cl, Ar; (b) Be, Ca; (c) K, Co; (d) S, Ge; (e) Sn, Te.
