52 Te

Metalloid

Tellurium

Used in solar panels.

See it in the interactive periodic table

Properties of Tellurium

Atomic number (Z)
52
Symbol
Te
Atomic mass
127.6 g/mol
Category
Metalloid
Group
16
Period
5
Electron configuration
[Kr] 4d¹⁰ 5s² 5p⁴
Electronegativity (Pauling)
2.1
Atomic radius
123 pm
First ionization energy
869 kJ/mol
Melting point
722.66 K (449.5 °C)
Boiling point
1261 K (987.9 °C)
Density
6.232 g/cm³
Phase at 25 °C
Solid
Discovered
Discovered in 1782
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