Skip links

Tellurium (Te): Fun Facts and Information About the Element

What is the symbol? Te
What is the atomic number? 52
What is the atomic weight? 127.6
What is the melting point in Celsius? 449
What is the boiling point in Celsius? 990
What is the density (g/cm3)? 6.24
What year was it discovered? 1783
Who discovered the element? Franz Joseph Müller von Reichenstein
What group is the element in? 16
What is the electron configuration? [Kr] 4d10 5s2 5p4
What is the ionization energy? 9.0096
What element category is it in? Metalloids

Where is Tellurium Found?

Tellurium is occasionally found native, but is more often found as the telluride of gold, and combined with other metals. The U.S., CanadaPeru, and Japan are the largest Free World producers of the element.

What is Tellurium Used For?

Tellurium improves the machinability of copper and stainless steel, and its addition to lead decreases the corrosive action of sulfuric acid on lead. Tellurium is used as a basic ingredient in blasting caps, and is added to cast iron for chill control. Tellurium is used in ceramics.