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background
  • Key data; description
  • History
    • hydrogen around us
  • Uses
  • Geology
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    • hydrogen compounds
  • Reactions of hydrogen
  • Compounds
  • Bond enthalpies
  • Radii in compounds
  • Lattice energies
  • Reduction potentials
    • nuclear properties
  • NMR
  • Naturally occurring isotopes
  • Radioisotopes
    • electronic properties
  • Electronic configuration
  • Ionization energies
  • Electron affinities
  • Electronegativities
  • Effective nuclear charges
  • Electron binding energies
  • Atom radii
  • Valence shell radii
    • physical properties
  • Bulk properties (density, resistivity, etc.)
  • Thermal properties (melting point, etc.)
  • Thermodynamic properties
    • crystallography
  • Crystal structure
    		•
    Elements

    FRANCIUM
    87
    Fr
    [ 223 ]


    Electronegativities

    All values are quoted on the Pauling scale. Follow the appropriate hyperlinks for literature references, definitions, and graphs.

    Pauling electronegativity [/Pauling units]: 0.7
    Sanderson electronegativity [/Pauling units]: no data
    Allred Rochow electronegativity [/Pauling units]: 0.86
    Mulliken-Jaffe electronegativity [/Pauling units]: 0.68 (s orbital)
    Allen electronegativity [/Pauling units]: no data
    Fluorides
    none listed
    Chlorides
    none listed
    Bromides
    none listed
    Iodides
    none listed
    Hydrides
    none listed
    Oxides
    none listed
    Sulfides
    none listed
    Selenides
    none listed
    Tellurides
    none listed
    Nitrides
    none listed





    Our data and resources are taken from Web Elements