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lanthanum

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Lanthanum - Wikipedia
Lanthanum 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 first and the prototype of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table. en.wikipedia.org
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LANTHANUM Definition & Meaning - Merriam-Webster
The meaning of LANTHANUM is a white soft malleable metallic element that occurs in rare-earth minerals. www.merriam-webster.com
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Lanthanum | Rare Earth Element, Uses in Technology, & Medicine
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- ... www.britannica.com
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lanthanum
lanthanum Chem. (ˈlænθənəm) Also 9 lant(h)anium. [f. Gr. λανθάν-ειν to escape notice (see quot. 1841).] A rare element belonging to the group of earth metals, found in certain rare minerals, e.g. cerite; it was discovered by Mosander 1839–41. Symbol Ln. Also attrib.1841 Brande Man. Chem. (ed. 5) 877... Oxford English Dictionary
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Lanthanum - Element information, properties and uses | Periodic Table
Lanthanum is much better than lead at pushing up the refractive index without dispersing the light too much, this extra clarity means that lanthanum oxide is ... periodic-table.rsc.org
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Lanthanum | La (Element) - PubChem
Lanthanum is a chemical element with symbol La and atomic number 57. Classified as a lanthanide, Lanthanum is a solid at 25°C (room temperature). pubchem.ncbi.nlm.nih.gov
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Lanthanum acetylacetonate
It can be prepared by the reaction of lanthanum alkoxide and acetylacetone. References Lanthanum compounds Acetylacetonate complexes wikipedia.org
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Lanthanum - an overview | ScienceDirect Topics
Lanthanum is a chemical element of group III, of the yttrium subgroup. Natural lanthanum is composed of two isotopes: stable La-139 (99.911%) and radioactive ... www.sciencedirect.com
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Lanthanum: Element Properties and Uses
Lanthanum is a soft, silvery-white rare earth metal known for its high reactivity. It is used in hybrid vehicle batteries, optical lenses, ... www.samaterials.com
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Lanthanum Element | Discovery, Properties & Uses - Study.com
Lanthanum is an element with atomic number 57. The element lanthanum with the symbol La is the first element in the first stand-alone row on the periodic table. study.com
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Lanthanum - BYJU'S
The chemical Lanthanum is found in modern television sets, the energy saving lamps, fluorescent tubes, etc. It is used in the field of optics as lenses ... byjus.com
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Lanthanum – Properties and Applications - AZoM
Lanthanum is a relatively abundant element at about 18 parts per million. Monazite, bastnasite, and cerite are the common ores in which lanthanum occurs. www.azom.com
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lanthanum
lanthanum/ˈlænθənəm; `lænθəˌnəm/ n[U](chemistry 化) silver-white metallic element, used in certain alloys and in glass-making 镧. =>App 10 见附录10. 牛津英汉双解词典
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Lanthanum oxalate
Lanthanum oxalate is an inorganic compound, a salt of lanthanum metal and oxalic acid with the chemical formula . Synthesis Reaction of soluble lanthanum nitrate with an excess of oxalic acid: 2La(NO3)3 + 3(COOH)2 -> La2(C2O4)3 + 6HNO3 Also, a reaction of lanthanum wikipedia.org
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Lanthanum carbide
Lanthanum carbide (LaC2) is a chemical compound. Lanthanum atoms caged in fullerenes In La@C72, the lanthanum appears to stabilize the C72 carbon cage. wikipedia.org
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