Hafnium - Wikipedia
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 | Definition, Atomic Mass, Properties, Uses, & Facts
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.
Facts About Hafnium - Live Science
2018年3月31日 · 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 - Element information, properties and uses | Periodic Table
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
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 resistant to corrosion. Hafnium is denser than zirconium. Hafnium is resistant to …
Hafnium Facts, Symbol, Discovery, Properties, Uses - Chemistry …
2023年12月28日 · 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]. It is extracted from zircon ores whose major sources are heavy mineral sand ore deposits found in the USA, Malawi, Australia, and Brazil.
The Hardworking Element Hafnium - ChemTalk
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 other transition metals. Hafnium ignites spontaneously in powder form, similar to zirconium.
Understanding Hafnium: Applications, Properties, and History
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 - Properties, Applications & Health effects | Periodic Table
Hafnium (Hf) is a shiny and silvery metal exhibiting ductile features with an atomic number of 72. Learn about its applications, health effects, chemical, and physical properties.
Hafnium (Hf) - American Elements
Hafnium is an excellent neutron absorber with a high thermal neutron cross section, about 600 times that of zirconium, and one of its primary commercial uses is in control rods of nuclear reactors. It has also been used to enhance radiotherapy in the treatment of cancer.