Methods of Calculating Ionization Energies of Multielectron (Five or More) Isoelectronic Atomic Ions

Table 10

Ionization energies (eV) calculated using coefficients in Table 9.

𝑍	(2)	(3)	(4)	(5)	(6)	(7)
	First	Second	Third	Fourth	Fifth	Sixth
B	9.511	24.645	46.851	76.130	112.481	155.904
C	12.992	30.159	54.448	85.860	124.394	170.052
N	16.960	36.089	62.355	95.758	136.299	183.977
O	17.119	36.533	63.217	97.172	138.399	186.896
F	21.556	42.949	71.642	107.637	150.932	201.529
Ne	26.220	49.437	79.956	117.776	162.897	215.319
Na	8.165	17.177	29.502	45.141	64.092	86.358
Mg	10.793	20.965	34.482	51.345	71.554	95.109
Al	8.862	18.244	30.976	47.059	66.492	89.276
Si	11.437	21.927	35.800	53.057	73.698	97.723
P	14.145	25.719	40.727	59.170	81.048	106.360
S	14.618	26.437	41.733	60.505	82.754	108.479
Cl	17.251	30.082	46.457	66.377	89.841	116.850
Ar	20.008	33.876	51.375	72.504	97.263	125.653