.5 0. 1s 2S 1s 2S .5 [47723241. ] 2s 2S 2s 2S .5 [56599135. ] 3s 2S 3s 2S .5 [59700850. ] 4s 2S 4s 2S .5 [61134411. ] 5s 2S 5s 2S 1.5 [56634700. ] 3d 2D 3d 2D 1.5 [59715842. ] 4d 2D 4d 2D 1.5 [61142081. ] 5d 2D 5d 2D 2.5 [56646759. ] 3d 2D 3d 2D 2.5 [59720933. ] 4d 2D 4d 2D 2.5 [61144687. ] 5d 2D 5d 2D 3.5 [61145979. ] 5g 2G 5g 2G 4.5 [61146758. ] 5g 2G 5g 2G