Atomic Number: 52

Name: Tellurium

Atomic symbol: Te

Atomic Weight: 127.60

Electron affinity: -190 kJ/mol

Electron configuration: 1s²2s²2p⁶3s²3p⁶3d¹⁰4s²4p⁶4d¹⁰5s²5p⁴

Pauling electronegativity: 2.1

Melting Point: 452^oC

Boiling Point: 1390^oC

Density: 6.25 g/cm³

Standard potential (volts), X + 2e^- ---> X^2-: -0.92

Covalent radius: 1.37 angstroms

Ionic radius: 2.07 angstroms (-2); 2.50 angstroms (-1); 0.82 angstroms (+1); 0.70 angstroms (+4); 0.56 angstroms (+6)

Van Der Wall's radius: 2.2 angstroms

Common oxidation states in compounds: -2, +4, +6