… Beryllium, chromium, hafnium, rhenium, thallium, cadmium, germanium, vanadium, gallium, indium and niobium …
Explanatory notes
… 81.12 ‑ Beryllium, chromium, hafnium, rhenium, thallium, cadmium, germanium, … this metal are : (1) High temperature electrolysis of a mixture of beryllium oxyfluoride (manufactured from the ore) … It is also used in dental alloys and for silvering special mirrors. (F) HAFNIUM Hafnium is extracted from the same ores …