Vocabulary Entry

technetium

|noun

noun

Technetium is a chemical element with the symbol Tc and atomic number 43. It is a silvery-gray metal and is the first element to be artificially produced.

Example Sentences

"Technetium was discovered in 1937 by Carlo Perrier and Emilio Segrè."

"Because technetium is radioactive, it is often used in medical imaging."

"The properties of technetium make it useful in various applications, including nuclear medicine."