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Electron Affinity

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Element

eV

cm-1

Actinium

0.35 eV

Aluminum

   0.43283 ± 0.00005 eV   

     3491.0 ± 0.4 cm-1     

Antimony

  1.047401 ± 0.000020 eV  

    8447.86 ± 0.15 cm-1    

Argon

<0 eV

<0 cm-1

Arsenic

     0.814 ± 0.008 eV     

       6570 ± 70 cm-1      

Astatine

       2.8 ± 0.2 eV       

      22600 ± 1600 cm-1    

Barium

   0.14462 ± 0.00006 eV   

     1166.4 ± 0.5 cm-1     

Beryllium

<0 eV

<0 cm-1

Bismuth

  0.942362 ± 0.000013 eV  

    7600.66 ± 0.10 cm-1    

Boron

  0.279723 ± 0.000025 eV  

    2256.12 ± 0.20 cm-1    

Bromine

 3.3635880 ± 0.0000020 eV 

  27129.170 ± 0.015 cm-1   

Cadmium

<0 eV

<0 cm-1

Calcium

   0.02455 ± 0.00010 eV   

      198.0 ± 0.8 cm-1     

Carbon

  1.262118 ± 0.000020 eV  

   10179.67 ± 0.15 cm-1    

Cerium

     0.955 ± 0.026 eV     

Cesium

  0.471626 ± 0.000025 eV  

    3803.92 ± 0.20 cm-1    

Chlorine

  3.612724 ± 0.000027 eV  

   29138.59 ± 0.22 cm-1    

Chromium

   0.67584 ± 0.00012 eV   

     5451.0 ± 1.0 cm-1     

Cobalt

    0.6633 ± 0.0006 eV    

       5350 ± 5 cm-1       

Copper

   1.23578 ± 0.00004 eV   

     9967.2 ± 0.3 cm-1     

Europium

     0.864 ± 0.024 eV     

Fluorine

 3.4011895 ± 0.0000025 eV 

  27432.446 ± 0.019 cm-1   

Francium

     0.486 ± 0.002 eV     

Gallium

      0.41 ± 0.04 eV      

       3300 ± 300 cm-1     

Germanium

  1.232712 ± 0.000015 eV  

    9942.49 ± 0.12 cm-1    

Gold

   2.30861 ± 0.00003 eV   

    18620.2 ± 0.2 cm-1     

Hafnium

≈0 eV

≈0 cm-1

Helium

<0 eV

<0 cm-1

Hydrogen

0.75420375 ± 0.00000003 eV

6083.064145 ± 0.000030 cm-1

Indium

     0.404 ± 0.009 eV     

       3260 ± 70 cm-1      

Iodine

  3.059038 ± 0.000010 eV  

   24672.81 ± 0.08 cm-1    

Iridium

   1.56436 ± 0.00015 eV   

    12617.4 ± 1.2 cm-1     

Iron

     0.151 ± 0.003 eV     

       1220 ± 25 cm-1      

Krypton

<0 eV

<0 cm-1

Lanthanum

      0.47 ± 0.02 eV      

       3790 ± 160 cm-1     

Lead

     0.364 ± 0.008 eV     

       2940 ± 60 cm-1      

Lithium

  0.618049 ± 0.000021 eV  

    4984.90 ± 0.17 cm-1    

Lutetium

      0.34 ± 0.01 eV      

Magnesium

<0 eV

<0 cm-1

Manganese

<0 eV

<0 cm-1

Mercury

<0 eV

<0 cm-1

Molybdenum

    0.7472 ± 0.0002 eV    

       6027 ± 2 cm-1       

Neon

<0 eV

<0 cm-1

Nickel

   1.15716 ± 0.00012 eV   

     9333.1 ± 1.0 cm-1     

Niobium

     0.893 ± 0.025 eV     

       7200 ± 200 cm-1     

Nitrogen

     -0.07 ± 0.02 eV      

       -560 ± 160 cm-1     

Osmium

   1.07780 ± 0.00012 eV   

       8693 ± 1 cm-1       

Oxygen

 1.4611120 ± 0.0000027 eV 

  11784.664 ± 0.022 cm-1   

Palladium

   0.56214 ± 0.00012 eV   

     4534.0 ± 1.0 cm-1     

Phosphorus

    0.7465 ± 0.0003 eV    

       6021 ± 3 cm-1       

Platinum

   2.12510 ± 0.00005 eV   

    17140.1 ± 0.4 cm-1     

Polonium

       1.9 ± 0.3 eV       

      15300 ± 2400 cm-1    

Potassium

  0.501459 ± 0.000012 eV  

    4044.54 ± 0.10 cm-1    

Praseodymium

     0.962 ± 0.024 eV     

Radium

0.10 eV

Radon

<0 eV

<0 cm-1

Rhenium

      0.15 ± 0.15 eV      

       1200 ± 1200 cm-1    

Rhodium

   1.14289 ± 0.00020 eV   

     9218.0 ± 1.5 cm-1     

Rubidium

  0.485916 ± 0.000020 eV  

    3919.18 ± 0.15 cm-1    

Ruthenium

   1.04638 ± 0.00025 eV   

     8439.6 ± 2.0 cm-1     

Scandium

     0.188 ± 0.020 eV     

       1520 ± 160 cm-1     

Selenium

   2.02067 ± 0.00002 eV   

    16297.8 ± 0.2 cm-1     

Silicon

 1.3895220 ± 0.0000024 eV 

  11207.252 ± 0.018 cm-1   

Silver

   1.30447 ± 0.00002 eV   

    10521.3 ± 0.2 cm-1     

Sodium

  0.547926 ± 0.000025 eV  

    4419.32 ± 0.20 cm-1    

Strontium

   0.05206 ± 0.00006 eV   

      419.9 ± 0.5 cm-1     

Sulfur

 2.0771029 ± 0.0000010 eV 

  16752.966 ± 0.008 cm-1   

Tantalum

     0.322 ± 0.012 eV     

       2600 ± 100 cm-1     

Technetium

      0.55 ± 0.20 eV      

       4400 ± 1600 cm-1    

Tellurium

  1.970875 ± 0.000007 eV  

   15896.18 ± 0.05 cm-1    

Thallium

     0.377 ± 0.013 eV     

       3040 ± 100 cm-1     

Thulium

     1.029 ± 0.022 eV     

Tin

  1.112066 ± 0.000015 eV  

    8969.42 ± 0.12 cm-1    

Titanium

     0.084 ± 0.009 eV     

        680 ± 70 cm-1      

Tungsten

     0.815 ± 0.002 eV     

       6570 ± 60 cm-1      

Vanadium

     0.525 ± 0.012 eV     

       4230 ± 100 cm-1     

Xenon

<0 eV

<0 cm-1

Ytterbium

-0.020 eV

Yttrium

     0.307 ± 0.012 eV     

       2480 ± 100 cm-1     

Zinc

<0 eV

<0 cm-1

Zirconium

     0.426 ± 0.014 eV     

       3440 ± 110 cm-1     

References    (Click the button next to a value above to see complete citation information for that entry)

Andersen, T., H. K. Haugen, and H. Hotop. "Binding Energies in Atomic Negative Ions: III." Journal of Physical and Chemical Reference Data, volume 28, number 6, 1999, pp. 1511–1533.

Berkovits, D, E. Boaretto, S. Ghelberg, O. Heber, and M. Paul. "Electron Affinity of Strontium." Physical Review Letters, volume 75, number 3, 1995, pp. 414–417. doi:10.1103/PhysRevLett.75.414

Bilodeau, René C., and Harold K. Haugen. "Electron Affinity of Bi Using Infrared Laser Photodetachment Threshold Spectroscopy." Physical Review A, volume 64, number 2, 2001, pp. 024501–1 to 024501–3. doi:10.1103/PhysRevA.64.024501

Blondel, C., P. Cacciani, C. Delsart, and R. Trainham. "High-Resolution Determination of the Electron Affinity of Fluorine and Bromine Using Crossed Ion and Laser Beams." Physical Review A, volume 40, number 7, 1989, pp. 3698–3701. doi:10.1103/PhysRevA.40.3698

Blondel, Christophe, Christian Delsart, and Fabienne Goldfarb. "Electron Spectrometry at the μeV Level and the Electron Affinities of Si and F." Journal of Physics B: Atomic, Molecular and Optical Physics, volume 34, number 9, 2001, pp. L281–L288. doi:10.1088/0953-4075/34/9/101

Davies, B. J., C. W. Ingram, D. J. Larson, and U. Ljungblad. "The Electron Affinity of Iridium." Journal of Chemical Physics, volume 106, number 13, 1997, pp. 5783–5784. doi:10.1063/1.473602

Davis, V. T., and J. S. Thompson. "An Experimental Investigation of the Atomic Europium Anion." Journal of Physics B: Atomic, Molecular and Optical Physics, volume 37, number 9, 2004, pp. 1961–1965. doi:10.1088/0953-4075/37/9/015

Davis, V. T., and J. S. Thompson. "Measurement of the Electron Affinity of Cerium." Physical Review Letters, volume 88, number 7, 2002, pp. 073003–1 to 073003–4. doi:10.1103/PhysRevLett.88.073003

Davis, V. T., and J. S. Thompson. "Measurement of the Electron Affinity of Praseodymium." Journal of Physics B: Atomic, Molecular and Optical Physics, volume 35, number 1, 2002, pp. L11–L14. doi:10.1088/0953-4075/35/1/102

Davis, V. T., and J. S. Thompson. "Measurement of the Electron Affinity of Lutetium." Journal of Physics B: Atomic, Molecular and Optical Physics, volume 34, number 14, 2001, pp. L433–L437. doi:10.1088/0953-4075/34/14/102

Davis, V. T., and J. S. Thompson. "Measurement of the Electron Affinity of Thulium." Physical Review A, volume 65, number 1, 2001, pp. 010501–1 to 010501–3. doi:10.1103/PhysRevA.65.010501

Dzuba, V. A., and G. F. Gribakin. "Yb- 6p1/2—Low-Lying Shape Resonance Rather than a Bound State." Journal of Physics B: Atomic, Molecular and Optical Physics, volume 31, number 11, 1998, pp. L483–L487. doi:10.1088/0953-4075/31/11/002

Dzuba, V. A., and G. F. Gribakin. "Fine Structure of Ca-, Sr-, Ba-, and Ra- from the Many-Body Theory Calculation." Physical Review A, volume 55, number 3, 1997, pp. 2443–2446. doi:10.1103/PhysRevA.55.2443

Eliav, Ephraim, Marius J. Vilkas, Yasuyuki Ishikawa, and Uzi Kaldor. "Extrapolated Intermediate Hamiltonian Coupled-Cluster Approach: Theory and Pilot Application to Electron Affinities of Alkali Atoms." Journal of Chemical Physics, volume 122, number 22, 2005, pp. 224113–1 to 224113–5. doi:10.1063/1.1929727

Eliav, Ephraim, Sergei Shmulyian, Uzi Kaldor, and Yasuyuki Ishikawa. "Transition Energies of Lanthanum, Actinium, and Eka-Actinium (Element 121)." Journal of Chemical Physics, volume 109, number 10, 1998, pp. 3954–3958. doi:10.1063/1.476995

Gunion, Robert F., St. John Dixon-Warren, W. Carl Lineberger, and Michael D. Morse. "Ultraviolet Photoelectron Spectroscopy of Molybdenum and Molybdenum Monoxide Anions." Journal of Chemical Physics, volume 104, number 5, 1996, pp. 1765–1773. doi:10.1063/1.470975

Haeffler, Gunnar, Andreas E. Klinkmuller, Jonas Rangell, Uldis Berzinsh, and Dag Hanstorp. "The Electron Affinity of Tellurium." Zeitschrift für Physik D Atoms, Molecules and Clusters, volume 38, number 3, 1996, pp. 211–214. doi:10.1007/s004600050085

Haeffler, Gunnar, Dag Hanstorp, Igor Kiyan, Andreas E. Klinkmuller, Ulric Ljungblad, and David J. Pegg. "Electron Affinity of Li: A State-Selective Measurement." Physical Review A, volume 53, number 6, 1996, pp. 4127–4131. doi:10.1103/PhysRevA.53.4127

Hanstorp, D., and M. Gustafsson. "Determination of the Electron Affinity of Iodine." Journal of Physics B: Atomic, Molecular and Optical Physics, volume 25, number 8, 1992, pp. 1773–1783. doi:10.1088/0953-4075/25/8/012

Ho, Joe, Kent M. Ervin, and W. C. Lineberger. "Photoelectron Spectroscopy of Metal Cluster Anions: Cu-n, Ag-n, and Au-n." Journal of Chemical Physics, volume 93, number 10, 1990, pp. 6987–7002. doi:10.1063/1.459475

Ho, Joe, Kent M. Ervin, Mark L. Polak, Mary K. Gilles, and W. C. Lineberger. "A Study of the Electronic Structures of Pd-2 and Pd2 by Photoelectron Spectroscopy." Journal of Chemical Physics, volume 95, number 7, 1991, pp. 4845–4853. doi:10.1063/1.461702

Hotop, H., and W. C. Lineberger. "Binding Energies in Atomic Negative Ions: II." Journal of Physical and Chemical Reference Data, volume 14, number 3, 1985, pp. 731–750.

Koga, Toshikatsu, Hidenori Aoki, J. M. Garcia de la Vega, and Hiroshi Tatewaki. "Atomic Ionization Potentials and Electron Affinities with Relativistic and Mass Corrections." Theoretical Chemistry Accounts: Theory, Computation, and Modeling, volume 96, number 4, 1997, pp. 248–255. doi:10.1007/s002140050227

Leopold, Doreen G., and W. C. Lineberger. "A Study of the Low-Lying Electronic States of Fe2 and Co2 by Negative Ion Photoelectron Spectroscopy." Journal of Chemical Physics, volume 85, number 1, 1986, pp. 51–55. doi:10.1063/1.451630

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Polak, Mark L., gustav Gerber, Joe Ho, and W. C. Lineberger. "Photoelectron Spectroscopy of Small Antimony Cluster Anions: Sb-, Sb-2, Sb-3, Sb-4." Journal of Chemical Physics, volume 97, number 12, 1992, pp. 8990–9000. doi:10.1063/1.463326

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