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scandium    
n. 金属元素之一,符号为Sc,原子序为21

金属元素之一,符号为Sc,原子序为21

scandium
n 1: a white trivalent metallic element; sometimes classified in
the rare earth group; occurs in the Scandinavian mineral
thortveitite [synonym: {scandium}, {Sc}, {atomic number 21}]

Scandium \Scan"di*um\, n. [NL. So called because found in
Scandinavian minerals.] (Chem.)
A rare metallic element of the boron group, whose existence
was predicted under the provisional name {ekaboron} by means
of the periodic law, and subsequently discovered by spectrum
analysis in certain rare Scandinavian minerals (euxenite and
gadolinite). It has not yet been isolated. Symbol Sc. Atomic
weight 44.
[1913 Webster]


Ekabor \Ek"a*bor`\ ([e^]k"[.a]*b[=o]r`), Ekaboron \Ek"a*bo"ron\
(-b[=o]"r[o^]n), n. [G., fr. Skr. [=e]ka one G. bor, boron,
E. boron.] (Chem.)
The name given by Mendelejeff in accordance with the periodic
law, and by prediction, to a hypothetical element then
unknown, but since discovered and named {scandium}; -- so
called because it was a missing analogue of the boron group.
See {Scandium}.
[1913 Webster]


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  • Scandium - Wikipedia
    Scandium is a chemical element; it has 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 - Element information, properties and uses | Periodic Table
    Scandium is very widely distributed, and occurs in minute quantities in over 800 mineral species It is the main component of the very rare and collectable mineral thortveitite, found in Scandinavia Scandium can be recovered from thortveitite or extracted as a by-product from uranium mill tailings (sandy waste material)
  • Scandium | Chemical Element, Properties, Uses | Britannica
    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 | History, Uses, Facts, Physical Chemical Characteristics
    Scandium is the 50 th most common element in the earth crust and 35 th most abundant element in the Sun Scandium is found in ores of tin, uranium and tungsten Thortveitite (Scandium silicate) contain 45% scandium in the form of scandium oxide but it is very rare in nature
  • What is Scandium Used For? | Scandium
    Scandium, symbolized by ‘Sc’ with an atomic number of 21, is a rare and unique metal Lars Fredrik Nilson discovered it in 1879 in Scandinavia, and the element was named after the region Although scandium is the 50th most abundant element on Earth, it occurs in trace amounts in over 800 minerals
  • Facts About Scandium - Live Science
    Scandium is the 31 st most abundant element on Earth, according to Periodic Table, with about 22 parts per million abundance by weight in Earth's crust, according to Chemicool Scandium is
  • Scandium (Sc) Element: Properties, Uses, Toxic Effects - Science Info
    Scandium is the chemical element that belongs to the group 3 of the periodic table It is classified as the transition and rare earth metal which is represented by the symbol ‘Sc’ and has the atomic number 21 in the periodic table The name comes from the Latin word ‘ Scandia,’ meaning Scandinavia
  • Scandium Facts, Symbol, Discovery, Properties, Uses - Chemistry Learner
    What is Scandium Scandium (pronunciation SKAN-dee-em) is a soft, light metal exhibiting a high reactivity with air and water, represented by the chemical symbol Sc [1, 4] It belongs to the family of transition metals, having thirteen isotopes with mass numbers ranging from 40 to 52 of which only Sc-45 is the most common one [3]
  • Scandium | Sc (Element) - PubChem
    Scandium is a chemical element with symbol Sc and atomic number 21 Classified as a transition metal, Scandium is a solid at 25°C (room temperature) [Ar]4s 2 3d 1 J C Slater, J Chem Phys, 1964, 41 (10), 3199-3205 DOI:10 1063 1 1725697
  • Comprehensive Guide to Scandium: Properties, Uses, and Applications
    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





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