Table 2: Averaged energy levels of Ar I, II and their statistical weights.

conf. Energy

3110.000
4s(m)406 93378.7442
4s(t)40694575.2127
4s 4012 93976.9785
4p 4136106227.5353
3d 3260113606.4010
316127586.9944

Conf.: configuration.
Energy: averaged energy in cm−1.
All the energies are from the ground level of Ar I.