Science Periodic Table - Elements - Antimony Symbol Sb Atomic Number 51 Relative Atomic Mass 12C = 12.0000 112.760 Atomic Radius pm 182 First Ionisation Energy kJ mol-1 833.7 Electronegativity 2.05 Density kg m-3 6691 [293 K] 6483 [m.p.] Molar Volume cm3 18.20 Thermal Conductivity W m-1 K-1 24.3 [300 K] Melting Point K 903.89 Boiling Point K 1908 Number of Isotopes 40 Ground State Electron Configuration [Kr]4d105s25p3 Term Symbol 4S3/2 Discovery Known to ancients Name Derived From Greek anti + mono meaning 'not alone'; Latin stibium Name in Other Languages  Croatian Antimon  Danish antimon  Dutch antimony  Finnish antimoni  French antimoine  German Antimon  Italian antimonio  Norwegian antimon  Portuguese antimónio  Spanish antimonio  Swedish antimon Peter van der Krogt's Element Multidict - element name translations in over 48 langauges

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