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Deutsche Hafnium {n} [chem.] Synonyme

chem  
Hafnium  ÂHf  (Symbol)  
Hafnium  Hf (Symbol)  

Englische hafnium Synonyme

hafnium Definition

hafnium Bedeutung

hafnium
Hf
atomic number
a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals, used in filaments for its ready emission of electrons
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Hafnium is a chemical element with 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.