Scandium is a chemical element with symbol Sc and atomic number 21. : Sc 3+ is enriched in Ca-Al-rich inclusions in meteorites relative to the composition of the solar system. In the periodic table Sc is a member of 3 rd group and 4 th period. : Sc 3+ is commonly concentrated in residual soils and sediments. You, Sir, could have impregnated google with the question and an answer would have been delivered to you within a second. Its atomic number is 21 and indicated by the symbol Sc. Interesting Scandium Facts: Scandium was discovered in 1879 by Lars Fredrik Nilson, who named it after Scandinavia. The colour it develops when exposed to air is yellowish or pinkish cast. : Sc 3+ enters early-forming phases in igneous rocks. Scandium iodide (ScI3) is used in lamps that produce light having a color closely matching natural sunlight. Classified as a transition metal, Scandium is a solid at room temperature. Scandium is a silver-white hard metal which develops a slightly yellowish or pinkish cast upon exposure to air. Scandium is a silvery-white metallic d-block element. The atomic number of scandium (Sc) is 21. Atomic Mass 44,95591 Learn more about the atomic mass. Name Origin Chemical Characteristics. What is Scandium? Pure form of scandium is produced by heating scandium fluoride with calcium metal. Atomic number: 21: Atomic mass: 44.955910: Common isotopes: 45 Sc – 100% Other isotopes exist, see Isotopes of Scandium: Ground state electronic configuration: [Ar]. Scandium is an element with the atomic number 21 and represented with the symbol ‘Sc‘ in the periodic table. Scandium is a chemical element that has the symbol Sc and the atomic number 21. Description Fairly soft, silvery-white metal. Scandium burns easily and reacts with water. This member of the transition elements group is a silver-white that has been historically categorized as a rare earth element. Eighth most abundant 'rare earth' found in the earth's crust (5.0 ppm). The atomic weight of Sc is 44.95591 grams per mole. Scandium has an atomic no. One of the characteristics of Scandium is it gets tarnished and burned easily if ignited. Scandium easily reacts with dilute acids. Atomic Number 21 Learn more about the atomic number. Scandium. Therefore electronic configuration of scandium(Sc) is: 1s2 2s2 2p6 3s2 3p6 3d1 4s2. of 21. Scandium (Sc) has an atomic number of twenty-one. 4s 2: Oxidation states: Sc 3+ Physical appearance: It is easily burnt and get tarnished in the presence of air. Geochemistry of Scandium; Goldschmidt classification: Lithophile: Sc 3+ was one of the ions least depleted from the mantle in the formation of the crust. 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. 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