Technetium, as they called it, was the last of elements 1-92 to be tracked down, and in fact it had to be synthesized rather than isolated from naturally occurring sources.

As may be expected the chemistry of technetium often shows close similarity to that of rhenium, but differences have been found in their chlorides. The action of chlorine on rhenium metal gives ...

Technetium-99m (99mTc) is used in approximately 85% of diagnostic imaging procedures in nuclear medicine worldwide. Interruptions in the supply of molybdenum (99Mo), which is used to produce 99mTc, ...

The most widely used radioisotope in diagnostic nuclear medicine is technetium-99m. It can be attached to several specific molecules, allowing the diagnosis of many diseases, including certain types ...