Practical Fundamentals of Chemical Engineering - EIT ...
2.4.1 Ionization energy. The ionization energy, IE, is the energy required to remove the outermost electron from a gaseous atom or ion. The first ionization energy, IE 1, is the energy for the removal of an electron from a neutral, gaseous atom: M (g) M (g) + + e. Metallic atoms tend to lose enough electrons to gain the electron configuration ...
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