Line Tables

These tables give observed air wavelengths for the 2000-20000 Å range for spectra other than Fr I. Outside of the 2000-20000 Å range, the wavelengths are vacuum wavelengths. Lines of Fr I are extrapolated vacuum wavelengths from known energy levels. All observed lines are from NIST ASD. All energy level information is from NIST ASD. Wavelengths from MIT Wavelength Tables have been omitted as this publication appears to still be under copyright. However, in some cases, the exact same wavelength is given by NIST and MIT; in that case, the line is included.

Line intensities have been adjusted in the visible region to match photographed visible spectra. Line intensities of Rn have been adjusted to match the Grotrian diagram of Rn I. Line intensities in the infrared and ultraviolet are less reliable, but every effort was made to estimate them as accurately as possible. The elements He, O, Cl, Ar, Kr, and Xe have had their NIR lines photographed out to roughly 11000 Å. The intensities of the "brightest" several IR lines of each of these elements, in the 7000-10000 Å range, can be trusted. For the range of 3800-8000 Å, estimated visual brightnesses (EVB) are given. A dash in either of the intensity columns means the line intensity would be less than one relative to other lines of the same spectrum.

All Spectra

H   He
Li Be   B C N O F Ne
Na Mg   Al Si P S Cl Ar
K Ca   Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr   Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts Og

Entire Range | 2000-10000 Å | Visible Region | Si CCD/CMOS Region | Thermal IR | Vacuum UV
Specific Wavelength (rounded):  Å  nm
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λ, Å E. Sp.# Rel.Int. EVB Lower Config Lower Term+J Lower Level Upper Config Upper Term+J Upper Level
2.7503 Xe XLV - - 2p6 1S0 0 2p5.3/23d3/2 (3/2,3/2)°2 36360000
2.753 Cs XLVII 1 - 2s2.2p5 23/2 0 (2s2.2p21/2.2p23/2).3s (2,1/2)3/2 36327406
2.754 Cs XLVII 1 - 2s2.2p5 21/2 2935100 (2s2.2p1/2.2p33/2).3s (1,1/2)1/2 39243273
2.75407 Mo XLI - - 1s.2s 3S1 143972040 1s.4p 31 180281880
2.7543 Xe XLV - - 2p6 1S0 0 2p5.3/23d3/2 (3/2,3/2)°1 36307000
2.758 Cs XLVII 1 - 2s2.2p5 23/2 0 (2s2.2p21/2.2p23/2).3s (2,1/2)5/2 36264638
2.76135 Ba ILVIII 1 - 2s.2p6 2S1/2 5755700 (2s2.2p1/2.2p33/2).3p1/2 °3/2 41969900
2.76581 Sr IIIVIII - - 2p 21/2 120906800 6s 2S1/2 157062531
2.76715 Sr IIIVIII - - 2s 2S1/2 120923570 6p 21/2 157061861
2.772 Cs XLVII 1 - 2s.2p6 (1/2,0)1/2 5448700 (2s.2p21/2.2p33/2).3s (2,1/2)°3/2 41529373
2.77631 Mo XLI - - 1s.2p 30 144418220 1s.4d 3D1 180437200
2.7772 Mo XLI - - 1s.2p 31 144429730 1s.4d 3D1 180437200
2.77736 Mo XLI - - 1s.2p 31 144429730 1s.4d 3D2 180435100
2.77811 Mo XLI - - 1s.2s 1S0 144441300 1s.4p 11 180437010
2.79324 Mo XLI - - 1s.2p 31 144429730 1s.4s 3S1 180230480
2.8 Cs XLVII 1 - 2s.2p6 (1/2,0)1/2 5448700 (2s2.2p1/2.2p33/2).3p (2,3/2)°1/2 41160665
2.8186 Xe XLV - - 2p6 1S0 0 2p5.3/23p3/2 (3/2,3/2)2 35479000
2.8253 Cs XLVI 1 - 2s2.2p6 1S0 0 2s2.2p5.3s (3/2,1/2)°1 35413900
2.82589 K XIX 1 - 1s 2S1/2 0 3p 23/2 35387109.6
2.8259 Xe XLV - - 2p6 1S0 0 2p5.3/23p3/2 (3/2,3/2)1 35387000
2.82703 K XIX 1 - 1s 2S1/2 0 3p 21/2 35372800
2.82853 Sr IIIVIII - - 2p 23/2 121708454 6s 2S1/2 157062531
2.82862 Rb XXXVII - - 2p 21/2 114515300 7s 2S1/2 149868175
2.82997 Rb XXXVII - - 2s 2S1/2 114531700 7p 21/2 149867788
2.85612 Mo XLI - - 1s.2p 32 145466040 1s.4d 3D3 180478600
2.8571 Mo XL - - 1s2.2s 2S1/2 0 1s2.4p 23/2 35000550
2.85967 Mo XLI - - 1s.2p 32 145466040 1s.4d 3D2 180435100
2.86746 Mo XL - - 1s2.2s 2S1/2 0 1s2.4p 21/2 34874050
2.8732 Sc XX 5 - 1s2 1S0 0 1s.2p 11 34805000
2.8765 Mo XLI - - 1s.2p 32 145466040 1s.4s 3S1 180230480
2.8799 Xe XLV - - 2p6 1S0 0 2p5.3/23p1/2 (3/2,1/2)2 34723000
2.8827 Sc XIX 5 - 1s2.2p 23/2 357400 1s.2p2 2S1/2 35047000
2.8828 Xe XLV - - 2p6 1S0 0 2p5.3/23p1/2 (3/2,1/2)1 34688000
2.8833 Sc XX 5 - 1s2 1S0 0 1s.2p 32 34682810
2.8848 Sc XIX 5 - 1s2.2s 2S1/2 0 1s.(2S).2s.2p.(1P°) 21/2 34664000
2.887 Sc XX 5 - 1s2 1S0 0 1s.2p 31 34638550
2.88731 Rb XXXVII - - 2p 23/2 115233900 7s 2S1/2 149868175
2.89059 Mo XLI - - 1s.2p 11 145685800 1s.4s 1S0 180280820
2.8964 Sc XIX 5 - 1s2.2p 21/2 306700 1s.2p2 2D3/2 34840000
2.898 Sc XIX 5 - 1s2.2p 23/2 357400 1s.2p2 2P3/2 34860000
2.8999 Sc XIX 5 - 1s2.2p 23/2 357400 1s.2p2 2D3/2 34840000
2.9029 Sc XX 5 - 1s2 1S0 0 1s.2s 3S1 34448120
2.9125 Mo XL - - 1s2.2p 21/2 694460 1s2.4d 2D3/2 35029200
2.91749 Ar IVIII - - 1s 2S1/2 0 5p 23/2 34276001.28
2.9177 Ar IVIII - - 1s 2S1/2 0 5p 21/2 34273516.6
2.92101 Sr IIIVIII - - 2p 21/2 120906800 5d 2D3/2 155141547
2.92145 Rb XXXVII - - 2p 21/2 114515300 6s 2S1/2 148744910
2.92243 Sr IIIVIII - - 2s 2S1/2 120923570 5p 23/2 155141640
2.9229 Rb XXXVII - - 2s 2S1/2 114531700 6p 21/2 148744300
2.92528 Sr IIIVIII - - 2p 21/2 120906800 5s 2S1/2 155091620
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