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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 TELLURIUM 52 Te 127.60 (3) g actiniumaluminiumamericiumantimonyargonarsenicastatinebariumberkeliumberylliumbismuthbohriumboronbrominecadmiumcaesiumcalciumcaliforniumcarbonceriumchlorinechromiumcobaltcoppercuriumdarmstadtiumdubniumdysprosiumeinsteiniumerbiumeuropiumfermiumfluorinefranciumgadoliniumgalliumgermaniumgoldhafniumhassiumheliumholmiumhydrogenindiumiodineiridiumironkryptonlanthanumlawrenciumleadlithiumlutetiummagnesiummanganesemeitneriummendeleviummercurymolybdenumneodymiumneonneptuniumnickelniobiumnitrogennobeliumosmiumoxygenpalladiumphosphorusplatinumplutoniumpoloniumpotassiumpraseodymiumpromethiumprotactiniumradiumradonrheniumrhodiumroentgeniumrubidiumrutheniumrutherfordiumsamariumscandiumseaborgiumseleniumsiliconsilversodiumstrontiumsulphurtantalumtechnetiumtelluriumterbiumthalliumthoriumthuliumtintitaniumtungstenuraniumvanadiumxenonytterbiumyttriumzinczirconium Name: tellurium Group number: 16 Symbol: Te Group name: Chalcogen Atomic number: 52 Period number: 5 Atomic weight: 127.60 (3) g Block: p-block CAS Registry ID: 13494-80-9 Voice: Standard state: solid at 298 K Colour: silvery lustrous grey Classification: Semi-metallic Availability: Fluorides TeF4 TeF6 Chlorides Te2Cl TeCl2 Te3Cl2 [TeCl4]4 Bromides Te2Br TeBr2 [TeBr4]4 Iodides TeI Te2I Te4I4 [TeI4]4 Hydrides none listed Oxides TeO TeO2 TeO3 Sulfides none listed Selenides none listed Tellurides none listed Nitrides none listed

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