Z Element K-alpha 2 K-alpha 1 eV eV 10 Ne 848.61 848.61 11 Na 1040.98 1040.98 12 Mg 1253.437 1253.688 13 Al 1486.295 1486.708 14 Si 1739.394 1739.985 16 S 2306.7 2307.885 17 Cl 2620.846 2622.44 18 Ar 2955.566 2957.682 19 K 3311.1956 3313.9476 20 Ca 3688.128 3691.719 21 Sc 4085.9526 4090.735 22 Ti 4504.9201 4510.8991 23 V 4944.671 4952.216 24 Cr 5405.5384 5414.8045 25 Mn 5887.6859 5898.801 26 Fe 6391.0264 6404.0062 27 Co 6915.538 6930.378 28 Ni 7461.0343 7478.2521 29 Cu 8027.8416 8047.8227 30 Zn 8615.823 8638.906 31 Ga 9224.835 9251.674 32 Ge 9855.42 9886.52 33 As 10507.5 10543.2674 34 Se 11181.53 11222.52 35 Br 11877.75 11924.36 36 Kr 12595.424 12648.002 37 Rb 13335.88 13395.49 38 Sr 14098.03 14165.2 39 Y 14882.94 14958.54 40 Zr 15690.645 15774.914 41 Nb 16521.28 16615.16 42 Mo 17374.29 17479.372 43 Tc 18250.9 44 Ru 19150.49 19279.16 45 Rh 20073.67 20216.12 46 Pd 21020.15 21177.08 47 Ag 21990.3 22162.917 48 Cd 22984.05 23173.98 49 In 24002.03 24209.75 50 Sn 25044.04 25271.36 51 Sb 26110.78 26358.86 52 Te 27201.99 27472.57 53 I 28317.52 28612.32 54 Xe 29458.25 29778.78 55 Cs 30625.4 30973.13 56 Ba 31816.615 32193.262 57 La 33034.38 33442.12 58 Ce 34279.28 34720 59 Pr 35550.59 36026.71 60 Nd 37360.739 37360.739 61 Pm 38171.55 38725.11 62 Sm 39523.39 40118.481 63 Eu 40902.33 41542.63 64 Gd 42309.3 42996.72 65 Tb 43744.62 44482.75 66 Dy 45208.27 45998.94 67 Ho 46699.98 47547.1 68 Er 48221.61 49127.24 69 Tm 49772.67 50741.475 70 Yb 51354.6 52389.48 71 Lu 52965.57 54070.39 72 Hf 54612 55790.8 73 Ta 56277.6 57533.2 74 W 57981.77 59318.847 75 Re 59718.57 61141 76 Os 61487.27 63001.07 77 Ir 63287.29 64896.2 78 Pt 65123.3 66832.9 79 Au 66990.73 68804.5 80 Hg 68895.1 70819.5 81 Tl 70832.5 72872.5 82 Pb 72805.42 74970.11 83 Bi-209 74816.21 77109.2 88 Ra-226 85436 88476 90 Th-232 89957.04 93347.38 91 Pa-231 92283.4 95866.4 92 U-238 94650.84 98431.58 93 Np-237 97068.4 94 Pu-239 99523.2 94 Pu-244 99529.4