Lanthanum - Wikipedia
WebLanthanum is a chemical element; it has symbol La and atomic number 57. It is a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype.
Lanthanum | Rare Earth Element, Uses in Technology, & Medicine
Weblanthanum (La), chemical element, a rare-earth metal of Group 3 of the periodic table, that is the prototype of the lanthanide series of elements. Lanthanum is a ductile and malleable silvery white metal that is soft enough to be cut with a knife. It is the second most reactive of the rare-earth metals after europium.
Lanthanum - Element information, properties and uses | Periodic …
WebElement Lanthanum (La), Group 19, Atomic Number 57, d-block, Mass 138.905. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Comprehensive Guide to Lanthanum: Uses, Properties, and …
WebLanthanum is a chemical element with the symbol "La" and atomic number 57. It belongs to the lanthanide series and is classified as a rare-earth element. Lanthanum is generally known for its use in high-tech applications like flat …
Facts About Lanthanum | Live Science
WebJun 20, 2013 · Lanthanum oxide (La 2 O 3 ), also called lanthana, improves the alkali resistance of glass and is used in making camera lenses and in other special glasses. About 25 percent of the alloy...
Lanthanum Element Facts / Chemistry - chemicool.com
WebLanthanum and its compounds are considered to be moderately toxic. Characteristics: Lanthanum is a silvery-white soft metal, which can be cut with a knife. It is ductile, malleable and exposed surfaces tarnish rapidly in air forming the oxide. Lanthanum reacts with water to form lanthanum hydroxide plus hydrogen gas.
Lanthanum Element | Uses, Facts, Physical & Chemical …
WebLanthanum is a whitish silver metal. It is malleable and soft and can be cut with a knife. It is the first member of the lanthanide series of the periodic table, that is comprised of fifteen similar elements. Lanthanum is also the first member of the transition metals of the 6 …
lanthanum summary | Britannica
Weblanthanum, Metallic chemical element, one of the transition elements, chemical symbol La, atomic number 57. It was discovered in 1839, and its name derives from the Greek for “to lie hidden.” Lanthanum is a ductile and malleable silvery …
Lanthanum - Wikiwand
WebLanthanum is a chemical element; it has symbol La and atomic number 57. It is a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air. It is the eponym of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table, of which lanthanum is the first and the prototype.
Lanthanum | Encyclopedia.com
WebMay 17, 2018 · Lanthanum is a silver-white, malleable, and ductile metal. It is soft enough to be cut with a knife. The metal is rapidly oxidized when exposed to air. Cold water attacks lanthanum only slowly, but reaction with hot water is fast. Lanthanum chemistry is dominated by the trivalent lanthanum(III) ion, La 3+.
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