Scandium - Wikipedia
网页Scandium is a chemical element with the symbol Sc and atomic number 21. It is a silvery-white metallic d-block element. Historically, it has been classified as a rare-earth element, [9] together with yttrium and the lanthanides. It was discovered in 1879 by spectral analysis of the minerals euxenite and gadolinite from Scandinavia. [10]
Scandium | Chemical Element, Properties, & Uses | Britannica
网页scandium (Sc), chemical element, a rare-earth metal of Group 3 of the periodic table. Scandium is a silvery white, moderately soft metal. It is fairly stable in air but will slowly change its colour from silvery white to a yellowish appearance because of formation of Sc 2 O 3 oxide on the surface.
Scandium - Element information, properties and uses | Periodic …
网页Element Scandium (Sc), Group 3, Atomic Number 21, d-block, Mass 44.956. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Comprehensive Guide to Scandium: Properties, Uses, and …
网页Dive deep into the world of Scandium—a rare, yet invaluable element in the aerospace and aluminum industries. Learn about its physical and chemical properties, abundant sources, and wide-ranging applications in industrial, medical, and everyday contexts.
An Overview of Scandium (Sc or Element 21) - ThoughtCo
网页2019年7月3日 · Scandium is the transition metal with the lowest atomic number. The discovery of scandium filled a spot predicted by Mendeleev's periodic table. Scandium took the place of the placeholder element eka-boron.
Scandium | History, Uses, Facts, Physical & Chemical Characteristics
网页Scandium is a transition metal. It is silver-white soft metal. When exposed to air it develops a slightly yellowish or pinkish tint. It has a high melting point, but it is as light as aluminum. That means it has relatively low density, about 2.98g/cm 3. Its melting point is 1541 o C and boiling point is 2836 o C. Scandium chemical symbol is Sc ...
Facts About Scandium - Live Science
网页2016年9月21日 · Scandium is a silvery metal that is soft and has a density of about three times that of water. Scandium is a transition metal and is also considered a rare earth element due to similar...
Scandium | Elements - RSC Education
网页2010年2月28日 · Scandium is a soft, silvery-white metal which heads Group III of the Periodic Table. It tarnishes in air and burns easily once it has been ignited. Scandium powder reacts with water to form hydrogen gas, and it dissolves in most acids.
Scandium Facts - Science Notes and Projects
网页2015年6月9日 · Scandium is a silvery-white relatively light and soft metal at room temperature. When exposed to air, pure scandium develops a pink-yellow oxidation layer. Scandium is used in alloys much like aluminum.
scandium summary | Britannica
网页scandium, Metallic chemical element, one of the transition elements, chemical symbol Sc, atomic number 21. It was discovered in 1879, and its name derives from the Latin term for Scandinavia. Scandium is a silvery white, rather soft metal and is produced mostly as a by-product of uranium extraction from the mineral davidite, which contains ...