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52
Te
127.60

Tellurium

Metalloids · Group 16 · Period 5

Atomic properties

Atomic number52
SymbolTe
Standard atomic weight127.60
ClassificationMetalloids
Group16
Period5
Blockp-block
Electron configuration[Kr] 4d10 5s2 5p4
Electronegativity (Pauling)2.10
Common oxidation states+6, +4, -2

Physical properties

Phase at 20 °CSolid
Density6.24 g/cm³
Melting point449.51 °C
Boiling point988 °C
Discovered1782
CAS number

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