“…Although the NCA method thus may disagree with experimental data for the case of two electrons outside closed shells, it is worth to see, whether group three atoms, which have three electrons outside closed shells, can be treated sufficiently well by the NCA method, because the normal terms of such atoms are of configuration s2(1So)nl (n and l being the principal quantum number and the orbital angular momentum quantum number of the excited term, respectively), so that the excited electron moves in a spherically symmetric field. It is thus of interest to see, whether the systematics observed for light elements [4] also hold generally for heavy species, making the Zn II data [5,6] exceptions from the general trends [4], or whether the Zn II data indicate general changes in level populations as the projectile atomic number increases. of configuration p2nl which have configuration mixings with some of the normal terms.…”