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
13.856 Cs IIVIII 1 - 3p6.3d10 1S0 0 3p5.3d10.4s (3/2,1/2)°1 7217100
13.955 Cs IIVIII 1 - 3p6.3d10 1S0 0 3p6.3d9.4f (5/2,5/2)°1 7165900
17.03 Cs XLV 1 - 4p 21/2 13161430 5d 2D3/2 19033420
17.204 Cs IIVIII 1 - 3p6.3d10 1S0 0 3p6.3d9.4p (3/2,3/2)°1 5812600
17.544 Cs IIVIII 1 - 3p6.3d10 1S0 0 3p6.3d9.4p (5/2,3/2)°1 5700000
17.586 Cs XLIX 1 - (2s.2p1/2).(2p33/2) (0,3/2)3/2 7630600 2p1/2.(2p43/2) (1/2,0)°1/2 13316900
17.604 Cs XLIX 1 - (2s.2p21/2).(2p23/2) (1/2,2)5/2 4636600 (2p21/2).(2p33/2) (0,3/2)°3/2 10317000
17.7 Cs IIVIII 1 - 3p6.3d10 1S0 0 3p6.3d9.4p (3/2,1/2)°1 5649700
17.847 Cs XLV 1 - 4p 23/2 13468290 5d 2D5/2 19071500
18.067 Cs ILVIII 1 - 2s2.(2p21/2.2p23/2) (0,2)2 0 2s.(2p21/2.2p33/2) (1/2,3/2)°1 5535100
18.226 Cs LI 1 - (2s.2p1/2).2p3/2 (0,3/2)3/2 4073200 2p1/2.(2p23/2) (1/2,0)°1/2 9560000
18.26 Cs XLIX 1 - 2s2.2p1/2.(2p23/2) (1/2,2)°3/2 2829600 (2s.2p1/2).(2p33/2) (1,3/2)3/2 8306100
18.353 Cs XLVII 1 - 2s2.2p5 23/2 0 2s.2p6 (1/2,0)1/2 5448700
18.46 Cs ILVIII 1 - 2s2.(2p1/2.2p33/2) (0,1)1 2925000 2s.(2p1/2.2p43/2) (1/2,1/2)°1 8342000
18.574 Cs XLIX 1 - 2s2.2p1/2.(2p23/2) (1/2,2)°3/2 2829600 (2s.2p1/2).(2p33/2) (1,3/2)1/2 8213600
18.654 Cs ILVIII 1 - 2s.(2p21/2.2p33/2) (1/2,3/2)°1 5535100 (2p21/2).(2p43/2) (0,0)0 10896000
18.829 Cs XLIX 1 - 2s2.2p1/2.(2p23/2) (1/2,2)°5/2 2995100 (2s.2p1/2).(2p33/2) (1,3/2)3/2 8306100
18.836 Cs XLV 1 - 4d 2D3/2 13864670 5f 25/2 19173680
18.94 Cs ILVIII 1 - 2s2.(2p1/2.2p33/2) (0,2)2 3062100 2s.(2p1/2.2p43/2) (1/2,1/2)°1 8342000
19.042 Cs XLV 1 - 4d 2D5/2 13938320 5f 27/2 19189860
19.125 Cs XLIX 1 - 2s2.2p21/2.2p3/2 (0,3/2)°3/2 0 (2s.2p21/2).(2p23/2) (1/2,2)3/2 5228800
19.148 Cs ILVIII 1 - 2s2.(2p21/2.2p23/2) (0,0)0 312500 2s.(2p21/2.2p33/2) (1/2,3/2)°1 5535100
19.191 Cs XLIX 1 - 2s2.2p21/2.2p3/2 (0,3/2)°3/2 0 (2s.2p21/2).(2p23/2) (1/2,0)1/2 5210700
19.351 Cs LI 1 - (2s.2p1/2).2p3/2 (0,3/2)3/2 4073200 2p1/2.(2p23/2) (1/2,2)°5/2 9240900
19.411 Cs ILVIII 1 - 2s2.(2p1/2.2p33/2) (0,1)1 2925000 2s.(2p1/2.2p43/2) (1/2,1/2)°0 8076800
19.52 Cs LI 1 - 2s.(2p23/2) (1/2,2)5/2 7354900 2p33/2 (0,3/2)°3/2 12477900
19.584 Cs XLIX 1 - (2s.2p21/2).(2p23/2) (1/2,0)1/2 5210700 (2p21/2).(2p33/2) (0,3/2)°3/2 10317000
19.595 Cs XLIX 1 - (2s.2p1/2).(2p33/2) (1,3/2)1/2 8213600 2p1/2.(2p43/2) (1/2,0)°1/2 13316900
19.652 Cs XLIX 1 - 2s2.(2p33/2) (0,3/2)°3/2 6090700 2s.(2p43/2) (1/2,0)1/2 11179200
19.653 Cs XLIX 1 - (2s.2p21/2).(2p23/2) (1/2,2)3/2 5228800 (2p21/2).(2p33/2) (0,3/2)°3/2 10317000
19.659 Cs ILVIII 1 - 2s2.(2p21/2.2p23/2) (0,2)2 0 2s.(2p21/2.2p33/2) (1/2,3/2)°2 5086800
19.711 Cs XLIX 1 - 2s2.2p1/2.(2p23/2) (1/2,2)°3/2 2829600 (2s.2p1/2).(2p33/2) (1,3/2)5/2 7902800
19.767 Cs XLV 1 - 4f 25/2 14145890 5g 2G7/2 19204920
19.782 Cs XLIX 1 - 2s2.2p1/2.(2p23/2) (1/2,0)°1/2 3250900 (2s.2p1/2).(2p33/2) (1,3/2)3/2 8306100
19.854 Cs XLV 1 - 4f 27/2 14177750 5g 2G9/2 19214530
19.957 Cs XLIX 1 - (2s.2p1/2).(2p33/2) (1,3/2)3/2 8306100 2p1/2.(2p43/2) (1/2,0)°1/2 13316900
19.998 Cs LI 1 - (2s.2p1/2).2p3/2 (0,3/2)3/2 4073200 2p1/2.(2p23/2) (1/2,2)°3/2 9073800
20.15 Cs XLIX 1 - 2s2.2p1/2.(2p23/2) (1/2,0)°1/2 3250900 (2s.2p1/2).(2p33/2) (1,3/2)1/2 8213600
20.376 Cs XLIX 1 - 2s2.2p1/2.(2p23/2) (1/2,2)°5/2 2995100 (2s.2p1/2).(2p33/2) (1,3/2)5/2 7902800
20.401 Cs LI 1 - (2s.2p1/2).2p3/2 (1,3/2)5/2 4339200 2p1/2.(2p23/2) (1/2,2)°5/2 9240900
20.604 Cs LI 1 - 2s.(2p21/2) (1/2,0)1/2 1357400 (2p21/2).2p3/2 (0,3/2)°3/2 6210800
20.612 Cs LI 1 - 2s2.2p 23/2 3131500 2s.(2p23/2) (1/2,2)3/2 7983100
20.65 Cs XLVI 1 - 2s2.2p5.3p (3/2,1/2)2 36152800 2s2.2p5.3d (1/2,5/2)°3 40995300
20.665 Cs XLVI 1 - 2s2.2p5.3p (3/2,1/2)1 36133500 2s2.2p5.3d (1/2,5/2)°2 40972700
20.672 Cs LI 1 - 2s2.2p 23/2 3131500 2s.(2p23/2) (1/2,0)1/2 7968900
20.747 Cs XLVI 1 - 2s2.2p5.3p (3/2,1/2)2 36152800 2s2.2p5.3d (1/2,5/2)°2 40972700
20.829 Cs XLIX 1 - 2s2.2p1/2.(2p23/2) (1/2,2)°3/2 2829600 (2s.2p1/2).(2p33/2) (0,3/2)3/2 7630600
20.833 Cs LI 1 - (2s.2p1/2).2p3/2 (1,3/2)1/2 4760000 2p1/2.(2p23/2) (1/2,0)°1/2 9560000
20.835 Cs LI 1 - (2s.2p1/2).2p3/2 (1,3/2)3/2 4760300 2p1/2.(2p23/2) (1/2,0)°1/2 9560000
20.877 Cs XLVI 1 - 2s2.2p5.3p (3/2,1/2)1 36133500 2s2.2p5.3d (1/2,3/2)°1 40923500
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