The Ionization Energies, in Kcalories, for Mg and Ca Are

Short Answer

The ionization energies, in kcalories, for Mg and Ca are
a) Indicate the reasons for the relatively high third ionization energy for magnesium.
b) Indicate the reasons for the difference between the first ionization energies for Mg and Ca.
c) Predict the third ionization energy for calcium.