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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, together with yttrium and the lanthanides. It was discovered in 1879 by spectral analysis of the minerals euxenite and gadolinite from … 展开
Scandium chemistry is almost completely dominated by the trivalent ion, Sc . The radii of M ions in the table below indicate that the chemical … 展开
Aluminium alloys
The main application of scandium by weight is in aluminium-scandium alloys for minor aerospace industry … 展开• Scerri, Eric R. (2007). The Periodic System: Its Story and Its Significance. Oxford, UK: Oxford University Press. ISBN 9780195305739 展开
The world production of scandium is in the order of 15–20 tonnes per year, in the form of scandium oxide. The demand is slightly higher, and both the production and demand keep … 展开
Dmitri Mendeleev, who is referred to as the father of the periodic table, predicted the existence of an element ekaboron, with an atomic mass between 40 and 48 in 1869. Lars … 展开
Elemental scandium is considered non-toxic, though extensive animal testing of scandium compounds has not been done. The median lethal dose (LD50) levels for scandium chloride for rats have been determined as 755 mg/kg for intraperitoneal 展开
CC-BY-SA 许可证中的维基百科文本 Scandium - Element information, properties and uses | Periodic …
Element Scandium (Sc), Group 3, Atomic Number 21, d-block, Mass 44.956. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
- Discovered by: Lars Frederik Nilson
- Discovery date: 1879
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Scandium | Sc (Element) - PubChem
Scandium can be obtained from the minerals thortveitite ((Sc, Y) 2 Si 2 O 7), bazzite (Be 3 (Sc, Al) 2 Si 6 O 18) and wiikite, but is usually obtained as a …
- Atomic Mass: 44.95591 u
- Oxidation States: +3
- Electron Configuration: [Ar]4s23d1
- Year Discovered: 1879
Scandium (Sc) - Periodic Table
Scandium is the 21st element in the periodic table and has a symbol of Sc and atomic number of 21. It has an atomic weight of 44.95591 and a mass number of 45. Scandium has twenty-one …
Scandium (Sc) - Periodic Table
Scandium is a chemical element of the periodic table with chemical symbol Sc and atomic number 21 with an atomic weight of 44.9559 u and is classed as transition metal and is part of group 3 …
- Atomic number: 21
- Group: 3 (Scandium group)
- Classification: Transition Metal
- Symbol: Sc
Scandium (Sc) [21] — Chemical Element — Periodic Table
Get the facts about element Scandium (Sc) [21] from the periodic table. Find physical data, electron configuration, chemical properties, aggregation states, isotope data (including decay …
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Scandium (Sc) - The Chemical Elements
2020年4月8日 · With the periodic table symbol Sc, atomic number 21, atomic mass of 44.9559 g.mol-1, and electron configuration [Ar] 3d 1 4s 2, scandium is a soft and light silvery-white …
Scandium - EniG. Periodic Table of the Elements
Physical and chemical properties of Scandium: general data, thermal properties, ionization energies, isotopes, reduction potentials, abundance of elements, crystallographic data.
Scandium - Periodic Table and Atomic Properties
Mass numbers of typical isotopes of Scandium are 45. Atomic Mass of Scandium. Atomic mass of Scandium is 44.9559 u. The atomic mass is the mass of an atom. The atomic mass or relative isotopic mass refers to the mass of a single …
Technical data for the element Scandium in the Periodic Table
Complete and detailed technical data about the element Scandium in the Periodic Table.
