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Tellurium (Te)

Tellurium (Te) is element 52 of the periodic table, a metalloid in period 5 and group 16. Its standard atomic weight is 127.6, so one mole of tellurium atoms has a mass of 127.6 g. At room temperature it is a solid; it melts at 449.51 °C and boils at 987.85 °C.

52 Te Tellurium 127.6

Period 5, group 16 · Metalloid

← Sb Antimony I Iodine →

Atomic number	52
Symbol	Te
Standard atomic weight	127.6
Molar mass	127.6 g/mol
Category	Metalloid
Group	16
Period	5
Block	p-block
Electron configuration	[Kr] 5s² 4d¹⁰ 5p⁴
Oxidation states	+6, +4, −2
Electronegativity (Pauling)	2.1
Atomic radius (van der Waals)	206 pm
First ionisation energy	9.01 eV (869.3 kJ/mol)
Electron affinity	1.971 eV
State at room temperature	Solid
Melting point	722.66 K (449.51 °C)
Boiling point	1261 K (987.85 °C)
Density	6.232 g/cm³
Discovered	1782

Group 16

O · Oxygen S · Sulfur Se · Selenium Po · Polonium Lv · Livermorium

Calculate with Tellurium

Molar mass of Te Balance an equation Grams, moles and particles Whole periodic table

Atomic weight: IUPAC CIAAW standard atomic weight. Other properties: PubChem (U.S. National Library of Medicine, public domain). Values such as melting point and radius depend on how they were measured; check a data book for precise work.