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
7940.38549 Fr I - - 8s 2S1/2 19739.98 18d 2D5/2 32333.827
7941.31432 Fr I - - 8s 2S1/2 19739.98 18d 2D3/2 32332.354
7944.8374 Fr I 4 - 8s 2S1/2 19739.98 19p 23/2 32326.77
7949.34676 Fr I 2 - 8s 2S1/2 19739.98 19p 21/2 32319.63
7972.44722 Fr I - - 8s 2S1/2 19739.98 19s 2S1/2 32283.18
7990.22316 Fr I - - 8s 2S1/2 19739.98 17d 2D5/2 32255.275
7991.38912 Fr I - - 8s 2S1/2 19739.98 17d 2D3/2 32253.449
7995.82298 Fr I 5 - 8s 2S1/2 19739.98 18p 23/2 32246.51
8001.49148 Fr I 2 - 8s 2S1/2 19739.98 18p 21/2 32237.65
8030.66364 Fr I - - 8s 2S1/2 19739.98 18s 2S1/2 32192.251
8053.2844 Fr I - - 8s 2S1/2 19739.98 16d 2D5/2 32157.274
8054.7731 Fr I - - 8s 2S1/2 19739.98 16d 2D3/2 32154.979
8060.47289 Fr I 6 - 8s 2S1/2 19739.98 17p 23/2 32146.2
8067.73672 Fr I 3 - 8s 2S1/2 19739.98 17p 21/2 32135.03
8105.36192 Fr I - - 8s 2S1/2 19739.98 17s 2S1/2 32077.492
8134.81603 Fr I - - 8s 2S1/2 19739.98 15d 2D5/2 32032.821
8136.74351 Fr I 1 - 8s 2S1/2 19739.98 15d 2D3/2 32029.909
8144.27087 Fr I 7 - 8s 2S1/2 19739.98 16p 23/2 32018.55
8153.80024 Fr I 3 - 8s 2S1/2 19739.98 16p 21/2 32004.2
8171.66444 Fr I 2000 - 7s 2S1/2 0 7p 21/2 12237.409
8203.57399 Fr I - - 8s 2S1/2 19739.98 16s 2S1/2 31929.789
8242.98065 Fr I - - 8s 2S1/2 19739.98 14d 2D5/2 31871.514
8245.58519 Fr I 1 - 8s 2S1/2 19739.98 14d 2D3/2 31867.682
8255.81808 Fr I 9 - 8s 2S1/2 19739.98 15p 23/2 31852.65
8267.52316 Fr I 25 - 7p 21/2 12237.409 7d 2D5/2 24332.93
8268.71334 Fr I 4 - 8s 2S1/2 19739.98 15p 21/2 31833.76
8277.63383 Fr I 6 - 6d 2D3/2 16229.87 10s 2S1/2 28310.617
8328.73795 Fr I 255 - 7p 21/2 12237.409 7d 2D3/2 24244.03
8336.66661 Fr I - - 8s 2S1/2 19739.98 15s 2S1/2 31735.182
8391.25044 Fr I - - 8s 2S1/2 19739.98 13d 2D5/2 31657.155
8394.88181 Fr I 2 - 8s 2S1/2 19739.98 13d 2D3/2 31652
8409.36096 Fr I 10 - 8s 2S1/2 19739.98 14p 23/2 31631.49
8416.81623 Fr I - - 6d 2D5/2 16429.64 10s 2S1/2 28310.617
8427.46105 Fr I 6 - 8s 2S1/2 19739.98 14p 21/2 31605.95
8512.81033 Fr I 95 - 7p 23/2 13923.998 9s 2S1/2 25671
8524.07006 Fr I - - 8s 2S1/2 19739.98 14s 2S1/2 31471.465
8603.13111 Fr I - - 8s 2S1/2 19739.98 12d 2D5/2 31363.655
8608.42562 Fr I 2 - 8s 2S1/2 19739.98 12d 2D3/2 31356.506
8630.00411 Fr I 15 - 8s 2S1/2 19739.98 13p 23/2 31327.46
8656.70453 Fr I 7 - 8s 2S1/2 19739.98 13p 21/2 31291.72
8755.87968 Fr I - - 7p 21/2 12237.409 8p 23/2 23658.306
8760.01697 Fr I - - 6d 2D3/2 16229.87 8d 2D5/2 27645.373
8794.46603 Fr I - - 6d 2D3/2 16229.87 8d 2D3/2 27600.657
8801.609 Fr I - - 8s 2S1/2 19739.98 13s 2S1/2 31101.539
8916.04677 Fr I - - 6d 2D5/2 16429.64 8d 2D5/2 27645.373
8923.26288 Fr I - - 8s 2S1/2 19739.98 11d 2D5/2 30946.643
8931.48612 Fr I 3 - 8s 2S1/2 19739.98 11d 2D3/2 30936.325
8951.73644 Fr I - - 6d 2D5/2 16429.64 8d 2D3/2 27600.657
8966.05273 Fr I 20 - 8s 2S1/2 19739.98 12p 23/2 30893.16
8979.61896 Fr I 40 - 6d 2D3/2 16229.87 9p 23/2 27366.2
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