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Table 2

S4 + target levels.

i Conf. Level EAS ENIST

1 3s2 0. 0.
2 3s 3p 81903. 83024.
3 3s 3p 82281. 83394.
4 3s 3p 83055. 84155.
5 3s 3p 129469. 127151.
6 3p2 192961. 193739.
7 3p2 200144. 199967.
8 3p2 200551. 200371.
9 3p2 201338. 201146.
10 3s 3d 236311. 234942.
11 3s 3d 236338. 234947.
12 3s 3d 236379. 234956.
13 3p2 238460. 235350.
14 3s 3d 276501. 270700.
15 3s 4s 308970. 311595.

Notes. Key: i: level index; conf.: configuration; level: level IC designation; EAS: calculated level energy (Fernández-Menchero et al. 2014b); ENIST: observed energy from the NIST database (Martin et al. 1995). All energies are in cm-1.

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