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 - 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.
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.
钪 - 维基百科，自由的百科全书
网页鈧 kàng （英語： Scandium），是一種 化學元素， 化學符號 为 Sc， 原子序數 为21， 原子量 為 44.955 907 u。. 鈧是一種質輕、柔軟的銀白色 過渡金屬，常和 釔 及 鑭系元素 合稱為 稀土金屬。. [5] 鈧是在1879年由 拉爾斯·弗雷德里克·尼爾松 的團隊，在 斯堪地那維亞 ...
An Overview of Scandium (Sc or Element 21) - ThoughtCo
网页2019年7月3日 · Learn about the element scandium, otherwise known as Sc or element 21 on the periodic table of elements. Discover chemical, physical properties plus more.
Facts About Scandium - Live Science
网页2016年9月21日 · Scandium is a transition metal and is also considered a rare earth element due to similar chemical properties (such as difficulty in extracting and in separating from other elements) and...
Scandium | Elements - RSC Education
网页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 | History, Uses, Facts, Physical & Chemical Characteristics
网页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 (Sc) - Periodic Table
网页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 protons and twenty-four neutrons in its …
Scandium (Sc) [21] — Chemical Element — Periodic Table
网页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 trees) as well as some historic information.