Calculation of the Rydberg Energy Levels for Francium Atom

Table 1

Spectral coefficients of the four energy series for francium atom by fitting the experimental values.

	a 0	a 1	a 2	a 3
ns ^2S1/2	5.07085	0.323921	10.4546	96.28960
nd ^2D3/2	3.42366	0.101560	−0.18468	−1.68691
nd ^2D5/2	3.40262	0.133411	−0.117487	−0.89660