1 2s2 1 S 0.0 0.0 0.0 2 2s 2p 3 P 0.0 199181.0 199369.0 3 2s 2p 3 P 1.0 203474.0 204088.0 4 2s 2p 3 P 2.0 213182.0 214296.0 5 2s 2p 1 P 1.0 389583.0 396573.0 6 2p2 3 P 0.0 523237.0 526492.0 7 2p2 3 P 1.0 528796.0 532295.0 8 2p2 3 P 2.0 536856.0 541322.0 9 2p2 1 D 2.0 589449.0 598029.0 10 2p2 1 S 0.0 -1.0 735720.0 11 2s 3s 3 S 1.0 3011460.0 3009180.0 12 2s 3s 1 S 0.0 -1.0 3047366.0 13 2s 3p 1 P 1.0 3101540.0 3100617.0 14 2s 3p 3 P 0.0 -1.0 3102928.0 15 2s 3p 3 P 1.0 3106460.0 3104981.0 16 2s 3p 3 P 2.0 -1.0 3106848.0 17 2s 3d 3 D 1.0 3157240.0 3156466.0 18 2s 3d 3 D 2.0 3157510.0 3157046.0 19 2s 3d 3 D 3.0 3158600.0 3157920.0 20 2s 3d 1 D 2.0 3193300.0 3195254.0 21 2p 3s 3 P 0.0 -1.0 3261276.0 22 2p 3s 3 P 1.0 -1.0 3265258.0 23 2p 3s 3 P 2.0 -1.0 3276150.0 24 2p 3s 1 P 1.0 -1.0 3310803.0 25 2p 3p 1 P 1.0 3319380.0 3320348.0 26 2p 3p 3 D 1.0 -1.0 3332125.0 27 2p 3p 3 D 2.0 3334442.0 3334344.0 28 2p 3p 3 D 3.0 3343660.0 3344319.0 29 2p 3p 3 S 1.0 3356060.0 3356778.0 30 2p 3p 3 P 0.0 -1.0 3363021.0 31 2p 3p 3 P 1.0 3365570.0 3368918.0 32 2p 3p 3 P 2.0 3372540.0 3373234.0 33 2p 3d 3 F 2.0 -1.0 3375497.0 34 2p 3d 3 F 3.0 -1.0 3382864.0 35 2p 3d 1 D 2.0 -1.0 3387292.0 36 2p 3d 3 F 4.0 -1.0 3391288.0 37 2p 3p 1 D 2.0 3396200.0 3399741.0 38 2p 3d 3 D 1.0 3409280.0 3409925.0 39 2p 3d 3 D 2.0 3411060.0 3412346.0 40 2p 3d 3 D 3.0 3414710.0 3417388.0 41 2p 3d 3 P 2.0 3424350.0 3426246.0 42 2p 3d 3 P 1.0 -1.0 3428310.0 43 2p 3d 3 P 0.0 -1.0 3429480.0 44 2p 3p 1 S 0.0 3438270.0 3446171.0 45 2p 3d 1 F 3.0 3457080.0 3462550.0 46 2p 3d 1 P 1.0 3457130.0 3468049.0 47 2s 4s 3 S 1.0 4024880.0 4025240.0 48 2s 4s 1 S 0.0 -1.0 4039026.0 49 2s 4p 3 P 0.0 -1.0 4061684.0 50 2s 4p 3 P 1.0 -1.0 4062084.0 51 2s 4p 3 P 2.0 -1.0 4063294.0 52 2s 4p 1 P 1.0 4066690.0 4066185.0 53 2s 4d 3 D 1.0 -1.0 4083627.0 54 2s 4d 3 D 2.0 4086060.0 4083831.0 55 2s 4d 3 D 3.0 4085250.0 4084144.0 56 2s 4d 1 D 2.0 4095070.0 4096217.0 57 2s 4f 3 F 2.0 -1.0 4097070.0 58 2s 4f 3 F 3.0 -1.0 4097176.0 59 2s 4f 3 F 4.0 -1.0 4097324.0 60 2s 4f 1 F 3.0 -1.0 4100447.0 61 2p 4s 3 P 0.0 -1.0 4259068.0 62 2p 4s 3 P 1.0 -1.0 4261130.0 63 2p 4s 3 P 2.0 -1.0 4274052.0 64 2p 4s 1 P 1.0 -1.0 4281028.0 65 2p 4p 3 D 1.0 -1.0 4285372.0 66 2p 4p 1 P 1.0 -1.0 4292212.0 67 2p 4p 3 D 2.0 -1.0 4292270.0 68 2p 4p 3 P 0.0 -1.0 4299854.0 69 2p 4p 3 D 3.0 4307680.0 4303112.0 70 2p 4p 3 S 1.0 -1.0 4303776.0 71 2p 4d 3 F 2.0 -1.0 4307232.0 72 2p 4p 3 P 1.0 -1.0 4309766.0 73 2p 4p 3 P 2.0 -1.0 4310376.0 74 2p 4d 3 F 3.0 -1.0 4312711.0 75 2p 4d 1 D 2.0 -1.0 4314465.0 76 2p 4p 1 D 2.0 -1.0 4319430.0 77 2p 4d 3 D 1.0 -1.0 4319568.0 78 2p 4f 3 G 3.0 -1.0 4321732.0 79 2p 4d 3 F 4.0 -1.0 4322717.0 80 2p 4f 3 F 3.0 -1.0 4322856.0 81 2p 4f 3 G 4.0 -1.0 4322958.0 82 2p 4f 3 F 2.0 -1.0 4323464.0 83 2p 4d 3 D 2.0 4325150.0 4325366.0 84 2p 4d 3 D 3.0 4330900.0 4329373.0 85 2p 4d 3 P 2.0 -1.0 4332565.0 86 2p 4d 3 P 1.0 -1.0 4333498.0 87 2p 4d 3 P 0.0 -1.0 4334082.0 88 2p 4f 1 F 3.0 -1.0 4335336.0 89 2p 4p 1 S 0.0 -1.0 4335416.0 90 2p 4f 3 F 4.0 -1.0 4336068.0 91 2p 4f 3 G 5.0 -1.0 4338442.0 92 2p 4f 3 D 3.0 -1.0 4339461.0 93 2p 4f 3 D 2.0 -1.0 4340146.0 94 2p 4f 1 G 4.0 -1.0 4340422.0 95 2p 4f 3 D 1.0 -1.0 4342868.0 96 2p 4f 1 D 2.0 -1.0 4344423.0 97 2p 4d 1 F 3.0 4333370.0 4345259.0 98 2p 4d 1 P 1.0 -1.0 4347086.0 99 2s 5s 3 S 1.0 -1.0 4480211.0 100 2s 5s 1 S 0.0 -1.0 4487626.0 101 2s 5p 3 P 0.0 -1.0 4497912.0 102 2s 5p 3 P 1.0 -1.0 4498129.0 103 2s 5p 3 P 2.0 -1.0 4498708.0 104 2s 5p 1 P 1.0 -1.0 4501136.0 105 2s 5d 3 D 1.0 -1.0 4508694.0 106 2s 5d 3 D 2.0 -1.0 4508792.0 107 2s 5d 3 D 3.0 -1.0 4508944.0 108 2s 5d 1 D 2.0 -1.0 4514476.0 109 2s 5f 3 F 2.0 -1.0 4514968.0 110 2s 5f 3 F 3.0 -1.0 4515023.0 111 2s 5f 3 F 4.0 -1.0 4515100.0 112 2s 5g 3 G 3.0 -1.0 4516610.0 113 2s 5g 3 G 4.0 -1.0 4516660.0 114 2s 5g 3 G 5.0 -1.0 4516725.0 115 2s 5g 1 G 4.0 -1.0 4516809.0 116 2s 5f 1 F 3.0 -1.0 4517259.0 117 2p 5s 3 P 0.0 -1.0 4708782.0 118 2p 5s 3 P 1.0 -1.0 4709356.0 119 2p 5p 3 D 1.0 -1.0 4722612.0 120 2p 5s 1 P 1.0 -1.0 4723136.0 121 2p 5s 3 P 2.0 -1.0 4723694.0 122 2p 5p 3 D 2.0 -1.0 4726310.0 123 2p 5p 3 P 1.0 -1.0 4727666.0 124 2p 5p 3 P 0.0 -1.0 4731077.0 125 2p 5d 3 F 2.0 -1.0 4733510.0 126 2p 5d 3 F 3.0 -1.0 4737030.0 127 2p 5d 3 D 2.0 -1.0 4738365.0 128 2p 5p 1 P 1.0 -1.0 4739288.0 129 2p 5p 3 D 3.0 -1.0 4740250.0 130 2p 5f 3 G 3.0 -1.0 4740441.0 131 2p 5d 3 D 1.0 -1.0 4740494.0 132 2p 5f 3 G 4.0 -1.0 4741264.0 133 2p 5f 3 F 3.0 -1.0 4741288.0 134 2p 5f 3 F 2.0 -1.0 4741358.0 135 2p 5g 3 H 4.0 -1.0 4741669.0 136 2p 5g 3 H 5.0 -1.0 4741772.0 137 2p 5g 1 F 3.0 -1.0 4741818.0 138 2p 5g 3 F 4.0 -1.0 4741850.0 139 2p 5p 3 P 2.0 -1.0 4742124.0 140 2p 5p 3 S 1.0 -1.0 4743084.0 141 2p 5p 1 D 2.0 -1.0 4746789.0 142 2p 5d 3 F 4.0 -1.0 4748768.0 143 2p 5d 1 D 2.0 -1.0 4749480.0 144 2p 5d 3 D 3.0 -1.0 4751410.0 145 2p 5d 3 P 2.0 -1.0 4753510.0 146 2p 5d 3 P 1.0 -1.0 4754137.0 147 2p 5d 3 P 0.0 -1.0 4754592.0 148 2p 5f 1 F 3.0 -1.0 4754701.0 149 2p 5f 3 F 4.0 -1.0 4755115.0 150 2p 5g 1 G 4.0 -1.0 4756144.0 151 2p 5g 3 G 5.0 -1.0 4756228.0 152 2p 5f 3 G 5.0 -1.0 4756342.0 153 2p 5f 3 D 3.0 -1.0 4756396.0 154 2p 5p 1 S 0.0 -1.0 4756628.0 155 2p 5f 3 D 2.0 -1.0 4756782.0 156 2p 5g 3 G 3.0 -1.0 4756786.0 157 2p 5g 3 G 4.0 -1.0 4756834.0 158 2p 5g 1 H 5.0 -1.0 4757396.0 159 2p 5g 3 H 6.0 -1.0 4757414.0 160 2p 5f 1 G 4.0 -1.0 4757664.0 161 2p 5g 3 F 2.0 -1.0 4758081.0 162 2p 5g 3 F 3.0 -1.0 4758164.0 163 2p 5f 3 D 1.0 -1.0 4758274.0 164 2p 5d 1 F 3.0 -1.0 4758884.0 165 2p 5f 1 D 2.0 -1.0 4759257.0 166 2p 5d 1 P 1.0 -1.0 4760235.0 -1 Theoretical energies: Fernandez-Menchero, Del Zanna and Badnell, A&A, 2014, 566, A104 doi = {10.1051/0004-6361/201423864} Note: only the bound levels up to n=5 have been retained. Observed energies: n=2 levels: NIST database Other levels: Fawcett & Hayes 1987, Phys. Scr., 36, 80 Goldsmith, S., Oren, L., Cohen, L., 1974, ApJ, 188, 197 Levels 11,13,15: Fawcett and Hayes. Levels 17,18,19,20,25 Fawcett and Hayes. Note: level 20, 2s 3d 1D2 had an incorrect energy in the previous CHIANTI version. Level 27, 2p 3p 3D2: from energy difference in Goldsmith et al., not reported by NIST Levels 28,29,31,32,37 Fawcett and Hayes Level 38, 2p 3d 3D1 Goldsmith et al. Levels 39,40,41,44 Fawcett and Hayes Level 45 2p 3d 1F3 Fawcett and Hayes, not reported by NIST Level 46 Fawcett and Hayes Levels 52,54,55,56 Fawcett and Hayes Level 69 2p 4p 3D3 Fawcett and Hayes, not reported by NIST, not in previous CHIANTI version Level 83 Fawcett and Hayes Level 84 Fawcett and Hayes Produced as part of the 'CHIANTI' atomic data base collaboration by Giulio Del Zanna, May 2020 -1