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background Key data; description History hydrogen around us Uses Geology Biology 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 MERCURY 80 Hg 200.59 (2) actiniumaluminiumamericiumantimonyargonarsenicastatinebariumberkeliumberylliumbismuthbohriumboronbrominecadmiumcaesiumcalciumcaliforniumcarbonceriumchlorinechromiumcobaltcoppercuriumdarmstadtiumdubniumdysprosiumeinsteiniumerbiumeuropiumfermiumfluorinefranciumgadoliniumgalliumgermaniumgoldhafniumhassiumheliumholmiumhydrogenindiumiodineiridiumironkryptonlanthanumlawrenciumleadlithiumlutetiummagnesiummanganesemeitneriummendeleviummercurymolybdenumneodymiumneonneptuniumnickelniobiumnitrogennobeliumosmiumoxygenpalladiumphosphorusplatinumplutoniumpoloniumpotassiumpraseodymiumpromethiumprotactiniumradiumradonrheniumrhodiumroentgeniumrubidiumrutheniumrutherfordiumsamariumscandiumseaborgiumseleniumsiliconsilversodiumstrontiumsulphurtantalumtechnetiumtelluriumterbiumthalliumthoriumthuliumtintitaniumtungstenuraniumvanadiumxenonytterbiumyttriumzinczirconium Thermal Properties and temperatures Temperatures Melting point [/K]: 234.32 [or -38.83 °C (-37.89 °F)] Boiling point [/K]: 629.88 [or 356.73 °C (674.11 °F)] (liquid range: 395.56 K) Critical temperature [/K]: 1750 [or 1477 °C (2691 °F)] Superconduction temperature [/K]: 3.95 [or -269.2 °C (-452.6 °F)] Expansion and conduction properties Thermal conductivity [/W m-1 K-1]: 8.3 Coefficient of linear thermal expansion [/K-1 multiplied by 106]: no data Enthalpies Enthalpy of fusion [/kJ mol-1]: 2.29 Enthalpy of vaporization [/kJ mol-1]: 59.2 Enthalpy of atomization [/kJ mol-1]: 64 Fluorides HgF2 Hg2F2 Chlorides HgCl2 Hg2Cl2 Bromides HgBr2 Hg2Br2 Iodides HgI2 Hg2I2 Hydrides HgH2 Oxides HgO Hg2O Sulfides HgS Selenides HgSe Tellurides HgTe Nitrides none listed

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