Interesting Scandium Facts: Scandium was discovered in 1879 by Lars Fredrik Nilson, who named it after Scandinavia. It is a soft silvery metal that has three times the density of water and can be found in the form of solid at room temperature. This member of the transition elements group is a silver-white that has been historically categorized as a rare earth element. Scandium has an atomic no. Scandium. Atomic Number 21 Learn more about the atomic number. The atomic number of scandium (Sc) is 21. Scandium is a silvery-white metallic d-block element. Geochemistry of Scandium; Goldschmidt classification: Lithophile: Sc 3+ was one of the ions least depleted from the mantle in the formation of the crust. Atomic number: 21: Atomic mass: 44.955910: Common isotopes: 45 Sc – 100% Other isotopes exist, see Isotopes of Scandium: Ground state electronic configuration: [Ar]. The colour it develops when exposed to air is yellowish or pinkish cast. Atomic Mass 44,95591 Learn more about the atomic mass. Chemical Characteristics. It is easily burnt and get tarnished in the presence of air. Scandium is a chemical element that has the symbol Sc and the atomic number 21. In the periodic table Sc is a member of 3 rd group and 4 th period. Scandium-45 atom is the stable isotope of scandium with relative atomic mass 44.955910, 100 atom percent natural abundance and nuclear spin 7/2. Scandium easily reacts with dilute acids. Description Fairly soft, silvery-white metal. 4s 2: Oxidation states: Sc 3+ Physical appearance: Scandium is an element with the atomic number 21 and represented with the symbol ‘Sc‘ in the periodic table. : Sc 3+ enters early-forming phases in igneous rocks. What is Scandium? It reacts with water and form hydrogen gas. of 21. Scandium burns easily and reacts with water. Scandium (Sc) has an atomic number of twenty-one. Therefore electronic configuration of scandium(Sc) is: 1s2 2s2 2p6 3s2 3p6 3d1 4s2. 3d 1. Classified as a transition metal, Scandium is a solid at room temperature. Scandium is mined from one of the rare minerals from Scandinavia. Scandium iodide (ScI3) is used in lamps that produce light having a color closely matching natural sunlight. One of the characteristics of Scandium is it gets tarnished and burned easily if ignited. Name Origin Its atomic number is 21 and indicated by the symbol Sc. : Sc 3+ is enriched in Ca-Al-rich inclusions in meteorites relative to the composition of the solar system. Scandium is a chemical element with symbol Sc and atomic number 21. You, Sir, could have impregnated google with the question and an answer would have been delivered to you within a second. Sc is not found free in nature but Scandium is usually found in rare minerals from Scandinavia and Madagascar such as thortveitite, euxenite and gadolinite. Eighth most abundant 'rare earth' found in the earth's crust (5.0 ppm). 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