The Neodymium Ionization Energy is the energy required to remove from atom one mole of electrons with subsequent production of positively charged ion of Neodymium.
Nd -> Nd+ + e-
This process can be repeated many times, but the energy cost is increased dramatically. The general equation for the Neodymium is:
NdN+ -> Nd(N+1)+ + e-
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Nd -> Nd1+ = 529.6 kJ/mol = 126.70 Kcal/mol
Nd1+ -> Nd2+ = 1035 kJ/mol = 247.61 Kcal/mol
Nd2+ -> Nd3+ = 2130 kJ/mol = 509.57 Kcal/mol
Nd3+ -> Nd4+ = 3899 kJ/mol = 932.78 Kcal/mol
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