Skip links

Technetium (Tc): Fun Facts and Information About the Element

What is the symbol? Tc
What is the atomic number? 43
What is the atomic weight? 98
What is the melting point in Celsius? 2200
What is the boiling point in Celsius? 4877
What is the density (g/cm3)? 11.5
What year was it discovered? 1937
Who discovered the element? “Carlo Perrier and Emilio Segrè”
What group is the element in? 7
What is the electron configuration? [Kr] 4d5 5s2
What is the ionization energy? 7.28
What element category is it in? Transition Elements

Where Does Technetium Look Like?

Technetium is a silvery-gray metal that tarnishes slowly in moist air.

What is the History of Technetium?

The element was discovered by Perrier and Segre in Italy in 1937. It was also found in a sample of molybdenum sent by E. Lawrence that was bombarded by deuterons in the Berkeley cyclotron. Technetium was the first element to be produced artificially.