Hafnium is a chemical element; it has 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 1922, by Dirk Coster and George de Hevesy.

Hafnium, chemical element, metal of Group 4 (IVb) of the periodic table. It is a ductile metal with a brilliant silvery luster. It is dispersed in Earth’s crust to the extent of three parts per million and is invariably found in zirconium minerals up to a few percent compared with zirconium.

Hafnium is a greyish-silver lustrous metal. It is a transition metal and resembles zirconium in its chemical properties, as both have equal number of valence electrons. It is ductile and is …

Mar 31, 2018 · Hafnium is a lustrous, silvery-gray transition metal. Discovered in 1923, it was the next-to-last element with stable nuclei to be added to the periodic table (the final one was rhenium in...

Hafnium is a chemical element with symbol Hf and atomic number 72. Classified as a transition metal, Hafnium is a solid at room temperature. J.C. Slater, J Chem Phys, 1964, 41 (10), 3199-3205. DOI:10.1063/1.1725697.

Hafnium produces a protective film of nitride or oxide on exposed surfaces, making the element highly resistant to corrosion. The element can form alloys with iron, tantalum, titanium, and …

Element Hafnium (Hf), Group 4, Atomic Number 72, d-block, Mass 178.486. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

Dec 28, 2023 · Hafnium (pronounced as HAF-nee-uhm) belongs to the family of transition metals, denoted by the chemical symbol Hf. It has thirty-two isotopes with known half-lives, of which only six exist naturally [1, 2].

Feb 1, 2025 · Hafnium is a shiny, silvery-gray metal that is ductile and resistant to corrosion. It has two allotropes: α-Hafnium: Hexagonal close-packed (hcp) structure, stable at room …

Hafnium is a lustrous, silvery, ductile metal. Chemically it is similar to zirconium. When present in compounds, hafnium exists mostly in the oxidation state IV. Hafnium resists corrosion due to the formation of an oxide film on exposed surfaces. It is unaffected by all acids (apart from hydrogen fluoride) and all alkalis.