Hafnium | Definition, Atomic Mass, Properties, Uses, & Facts
网页2024年9月6日 · 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 - Wikipedia
网页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 - Element information, properties and uses | Periodic …
网页Element Hafnium (Hf), Group 4, Atomic Number 72, d-block, Mass 178.486. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Hafnium | History, Uses, Facts, Physical & Chemical Characteristics
网页Chemical Characteristics. Hafnium is resistant to attacks by concentrated alkalis. It reacts with halogens to form hafnium tetrahalides. When exposed to air, hafnium forms a protective layer on its surface that is prves to be protective against corrosion. Hafnium also react with carbon, oxygen, sulfur and nitrogen, at elevated temperatures.
Understanding Hafnium: Applications, Properties, and History
网页A comprehensive guide to Hafnium, exploring its history, properties, and wide range of applications. Learn how this unique element plays a crucial role in industries like nuclear energy, aerospace, and semiconductors, as well as its potential medical applications.
hafnium summary | Britannica
网页hafnium, Metallic chemical element, one of the transition elements, chemical symbol Hf, atomic number 72. A ductile metal with a brilliant silvery lustre, it was discovered in 1923 in Copenhagen, Den., and given a name derived from the Latin name of that city. Hafnium has high corrosion resistance.
Hafnium (Hf) - Periodic Table
网页Hafnium is the 72nd element in the periodic table and has a symbol of Hf and atomic number of 72. It has an atomic weight of 178.49 and a mass number of 180. Hafnium has seventy-two protons and one hundred eight neutrons in its nucleus, and seventy-two electrons in six shells. It is located in group four, period six and block d of the periodic ...
Hafnium | Hf (Element) - PubChem
网页Hafnium is a chemical element with symbol Hf and atomic number 72. Classified as a transition metal, Hafnium is a solid at room temperature.
Hafnium - Periodic Table
网页Hafnium - Properties, history, name origin, facts, applications, isotopes, electronic configuation, crystal structure, hazards and more; Interactive periodic table of the chemical elements.
hafnium - NIST Chemistry WebBook
网页Formula: Hf. Molecular weight: 178.49. IUPAC Standard InChI:InChI=1S/Hf Copy. IUPAC Standard InChIKey:VBJZVLUMGGDVMO-UHFFFAOYSA-N Copy. CAS Registry Number: 7440-58-6. Chemical structure: This structure is also available as a 2d Mol file. Permanent link for this species. Use this link for bookmarking this species for future reference.