Technecium and Technetium
After German chemists claimed to have discovered element 43 in 1925, the name masurium was used in the first publications. However, the German experiments could not be reproduced.

The official discovery of element 43 was accomplished by C. Perrier and E. Segrè in 1936. They proposed the name technetium (see Perrier, C.; Segrè, E. Technetium : The Element of Atomic Number 43, Nature, 1947, 159, 24.).

In 1949, the 15th IUPAC Conference adopted this name.

The name technetium was also used in the early American literature, for example in Radioactivity Applied to Chemistry; Wahl, A. C., Bonner, N. A., Eds.; John Wiley &amp; Sons: New York, 1951.