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  Ar   IV      Argon

  Z =  18,  Ne =  15,   ION =  3

  Approach used:  Breit-Pauli+CI

  Level resolved dielectronic recombination calculation using AUTOSTRUCTURE

  Closed shells are not listed

  The total number of the non-relativistic configurations 24:
  3s2.3p3,3s2.3p2.3d,3s2.3p2.4s,3s2.3p2.4p,3s2.3p2.4d,3s2.3p2.4f,
  3s.3p4,3s.3p3.3d,3s.3p3.4s,3s.3p3.4p,3s.3p3.4d,3s.3p3.4f,3s2.3p.3d2,
  3s2.3p.3d.4s,3s2.3p.4s2,3s.3p2.3d2,3s.3p2.3d.4s,3s.3p2.4s2,3p5,
  3p4.3d,3p4.4s,3p3.3d2,3p3.3d.4s,3p3.4s2
  
  2015-09-15
  Author: I. Arnold et al.; nia001@auburn.edu
  I.Arnold, E.Thomas, S.D.Loch, S.Abdel-Naby, C.P.Ballance, J.Phys.B 48, 175005 (2015)