Hafnium was discovered by Dirk Coster and Von Hevesy in zirconium minerals after X-ray spectrometric analysis.
Hafnium was discovered by Dirk Coster and Georg von Hevesy in 1923 in Copenhagen, Denmark
Hafnium is primarily obtained as a by-product of zirconium production. It is found in most zirconium minerals, and it is extracted by various chemical processes like solvent extraction or ion exchange. Hafnium is a relatively rare element in the Earth's crust.
Hafnium was discovered in 1923 by Dirk Coster and George Charles von Hevesey. Niels Bohr however was the first scientist who predicted its existence. Hope that helps!
Hafnium is a natural chemical element; hafnium hasn't minerals but it is associated with zirconium (unrefined zirconium contain approx. 2 % hafnium).
Hafnium is relatively rare in the Earth's crust, with an abundance of about 3 parts per million. It is usually found in minerals such as zircon and baddeleyite. Hafnium is more abundant in the universe compared to Earth.
Hafnium was discovered by Dirk Coster and György Karl von Hevesy in 1922, in Copenhagen (Denmark), analyzing by X-ray spectrometry minerals containing zircon.
I'm not sure what day I'm trying to figure that out to but the year was 1963 i hope that helped
Wikipedia :Hafnium (pronounced /ˈhæfniəm/, HAF-nee-əm) 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 zirconium minerals. Its existence was predicted by Dmitri Mendeleev in 1869. Hafnium was the penultimate stable isotope element to be discovered (rhenium was identified two years later). Hafnium was found by Dirk Coster and Georg von Hevesy in 1923 in Copenhagen, Denmark, and named Hafnia after the Latin name for "Copenhagen".
Hafnium is malleable.
Hafnium is a shiny, silvery metal that does not have a distinct color.
Pure hafnium doesn't exist in the nature; hafnium form many compounds.
Fine powders of hafnium are pyrophoric.