Question

Rank the following ions in order of increasing first ionization energy: O2-, Mg2+,F-, Na+.
A) Mg2+ < Na+ < F- < O2-
B) Mg2+ < O2- < Na+ < F-
C) O2- < F- < Mg2+ < Na+
D) O2- < F- < Na+ < Mg2+
E) O2- < Mg2+ < F- < Na+

Answer

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