Hafnium Nanoparticles

Hafnium Nanoparticles Hafnium is a chemical element with the symbol Hf and atomic number 72. A bright tetravalent transition metal silver-gray hafnium chemically resembles zirconium and is found in many zirconium minerals. Its existence was predicted by Dmitri Mendeleev in 1869, although it was not identified until 1923 by Coster and Hevesy who made it the last stable element to be discovered. The hafnium takes its name from Hafnia the Latin name for Copenhagen where it was discovered.