Question

The valence electronic configuration of an atom is `6s^2` If d-orbital of the penultimate shell contains two unpaired electrons, calculate the atomic number

Answer 1

Since the valence electronic configuration of the atom is `6s^2` and cl-orbital of the penultinute shell contains two unpaired electrons, the electromc configuration is `[Xe]6s^24f^(14)5d^2`Therefore, the atomic number of the elen1ent is 72.