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Lutetium is a chemical element; it has symbol Lu and atomic number 71. It is a silvery white metal, which resists corrosion in dry air, but not in moist air.
Chemical Characteristics. Lutetium is tarnished in moist air. It is rapidly dissolved in weak acids. Lutetium reacts with water and forms lutetium hydroxide. It also reacts with four halogens, except fluoride to form trihalides. Most salts of lutetium are soluble in water and produce white crystals when the solution is dried.
Element Lutetium (Lu), Group 19, Atomic Number 71, f-block, Mass 174.967. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Periodic Table element Summary Lutetium. Lutetium is a chemical element with symbol Lu and atomic number 71. Classified as a lanthanide, Lutetium is a solid at room temperature.
Lutetium (Lu), chemical element, a rare-earth metal of the lanthanide series of the periodic table, that is the densest and the highest-melting rare-earth element and the last member of the lanthanide series. In its pure form, lutetium metal is silvery white and stable in air.
Lutetium (pronounced as loo-TEE-shee-em) [2] is a silvery, hard, dense rare earth metal classified as a lanthanide and represented by the chemical symbol Lu [1]. It is the last chemical element belonging to the lanthanide series [3], with the most naturally abundant, stable isotope being 175 Lu (97.4% abundance).
Lutetium is the 71st element in the periodic table and has a symbol of Lu and atomic number of 71. It has an atomic weight of 174.9668 and a mass number of 175. Lutetium has seventy-one protons and one hundred four neutrons in its nucleus, and seventy-one electrons in six shells.
