Graphing Exercise – Ionization Energy & Atomic Radius

Offer an explanation. Four elements of atomic numbers 17, 18, 19, and 20 have first ionization energies of 1500, 600, 400 and 1300 kJ/mol (listed in random order) Which ionization energy belongs to which element? Based on their positions in the periodic table, predict which atom of the following pairs will have the larger radius: a. O, Ne b. ................
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