B) the second valence electron is removed. C) the eighth electron of is removed. D) the first core electron is removed. E) the last valence electron is removed. Metallic behavior is generally associated with A) elements with very negative electron affinities.B) elements with low ionization energies. C) elements with small atomic radii. D) elements with unpaired electrons.E) elements with partially filled p orbitals.) the second valence electron is removed. C) the eighth electron of is removed. D) the first core electron is removed. E) the last valence electron is removed. Metallic behavior is generally associated with A) elements with very negative electron affinities.