Hafnium [SEP] named after
Hafnium
Hafnium is a chemical element with the symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in many zirconium minerals. Its existence was predicted by Dmitri Mendeleev in 1869, though it was not identified until 1923, by Coster and Hevesy, making it the last stable element to be discovered. Hafnium is named after "Hafnia", the Latin name for Copenhagen, where it was discovered.
Hafnium is used in filaments and electrodes. Some
the name Prins reaction. The first was the addition of polyhalogen compounds to olefins, was found during Prins doctoral research, while the others, the acid-catalyzed addition of aldehydes to olefinic compounds, became of industrial relevance.
Discoveries Chemistry Hafnium (1923).
Dutch physicist Dirk Coster and Hungarian-Swedish chemist George de Hevesy co-discovered "Hafnium" (Hf) in 1923, by means of X-ray spectroscopic analysis of zirconium ore. "Hafnium' is named after "Hafnia', the Latin name for