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Tellurium  SEE PERIODIC TABLE
see article  SEE FULL ARTICLE


Atomic Number52

Atomic SymbolTe

Atomic Weight127.60 amu

GroupMetalloid, 16

FormSolid

Density @ STP6.24 g/cm3

Melting Point449.51 °C (841.118 °F, 722.66 °K)

Boiling Point988 °C (1810.4 °F, 1261.15 °K)

Heat of Fusion17.49 kJ/mol

Heat of Vaporization114.1 kJ/mol

First Ionization Potential9.0096 eV

Electronegativity (on Pauling scale)2.1

Specific Heat Capacity0.202 J/g K

Ground State Electron Configuration5p4

Oxidation States+4, +6, -2

Stable Isotopes and Natural Abundance on Earth120Te, 0.096%; 122Te, 2.603%; 123Te, 0.908%; 124Te, 4.816%; 125Te, 7.139%; 126Te, 18.95%; 128Te, 31.69%; 130Te, 33.80%

Atomic Radius123 pm

Crystal StructureTrigonal

Discovered byMuller von Reichstein, 1783

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