Actinide (redirect from Radioactive rare earth element) thorium hydroxide (Th(OH)4) contaminated with ~3% of rare-earth hydroxides; the rest of rare-earth hydroxides remains in solution. Thorium hydroxide is... 130 KB (11,594 words) - 05:53, 24 March 2024 |
A rare-earth magnet is a strong permanent magnet made from alloys of rare-earth elements. Developed in the 1970s and 1980s, rare-earth magnets are the... 35 KB (3,658 words) - 11:21, 19 April 2024 |
Scandium (redirect from Element 21) element; it has symbol Sc and atomic number 21. It is a silvery-white metallic d-block element. Historically, it has been classified as a rare-earth element... 35 KB (4,058 words) - 06:57, 21 April 2024 |
Yttrium (redirect from Element 39) been classified as a "rare-earth element". Yttrium is almost always found in combination with lanthanide elements in rare-earth minerals and is never... 59 KB (6,693 words) - 13:44, 26 April 2024 |
Dysprosium (redirect from Element 66) Dysprosium is a chemical element; it has symbol Dy and atomic number 66. It is a rare-earth element in the lanthanide series with a metallic silver luster... 35 KB (4,204 words) - 04:16, 29 April 2024 |
Lanthanum (redirect from Element 57) hidden'. Although it is classified as a rare earth element, lanthanum is the 28th most abundant element in the Earth's crust, almost three times as abundant... 47 KB (5,878 words) - 10:06, 21 April 2024 |
relative proportion within the mineral: lanthanum is the most common rare-earth element in monazite-(La), and so forth. Silica (SiO2) is present in trace... 18 KB (1,951 words) - 18:52, 18 March 2024 |
Europium (redirect from Element 63) Europium is one of the rarest of the rare-earth elements on Earth. Its discoverer, Eugène-Anatole Demarçay named the element after the continent of Europe.... 43 KB (5,249 words) - 15:15, 15 April 2024 |
Erbium (redirect from Element 68) a lanthanide, a rare-earth element, originally found in the gadolinite mine in Ytterby, Sweden, which is the source of the element's name. Erbium's principal... 30 KB (3,638 words) - 11:03, 22 April 2024 |
Johan Gadolin (category Rare earth scientists) Gadolin discovered a "new earth" containing the first rare-earth compound yttrium, which was later determined to be a chemical element. He is also considered... 18 KB (1,704 words) - 20:38, 20 August 2023 |
Holmium (redirect from Element 67) Holmium is a chemical element; it has symbol Ho and atomic number 67. It is a rare-earth element and the eleventh member of the lanthanide series. It is... 35 KB (4,106 words) - 19:19, 15 April 2024 |
elements facing shortage Rare-earth element Strategic material Renewable energy#Conservation areas, recycling and rare-earth elements U.S. Department... 10 KB (848 words) - 07:55, 18 January 2024 |
Praseodymium (redirect from Element 59) chemical element; it has symbol Pr and the atomic number 59. It is the third member of the lanthanide series and is considered one of the rare-earth metals... 37 KB (4,819 words) - 02:53, 14 April 2024 |
Neodymium (redirect from Element 60) chemical element; it has symbol Nd and atomic number 60. It is the fourth member of the lanthanide series and is considered to be one of the rare-earth metals... 59 KB (6,824 words) - 17:35, 17 April 2024 |
in group 3, it behaves similarly to the other 14. The term rare-earth element or rare-earth metal is often used to include the stable group 3 elements... 106 KB (10,220 words) - 14:34, 21 April 2024 |
often been classified as a "rare earth element". Yttrium is almost always found combined with the lanthanides in rare earth minerals and is never found... 42 KB (4,989 words) - 03:33, 15 April 2024 |
History of the periodic table (section Mendeleev's predictions and inability to incorporate the rare-earth metals) chemically similar rare-earth elements; it was also used to confirm that Georges Urbain's claimed discovery of a new rare-earth element (celtium) was invalid... 90 KB (10,896 words) - 14:01, 29 April 2024 |
Lanthanites are a group of isostructural rare earth element (REE) carbonate minerals. This group comprises the minerals lanthanite-(La), lanthanite-(Ce)... 10 KB (1,107 words) - 22:48, 8 August 2023 |
Mountain Pass mine (redirect from Mountain Pass rare earth mine) The Mountain Pass Rare Earth Mine and Processing Facility, owned by MP Materials, is an open-pit mine of rare-earth elements on the south flank of the... 21 KB (2,168 words) - 17:11, 18 October 2023 |
Gadolinium (redirect from Element 64) paramagnetic element. It is found in nature only in an oxidized form. When separated, it usually has impurities of the other rare-earths because of their... 46 KB (5,774 words) - 16:29, 14 April 2024 |
Bastnäsite (section Extraction of rare-earth metals) the mineral is divided into three minerals based on the predominant rare-earth element. There is bastnäsite-(Ce) with a more accurate formula of (Ce, La)CO3F... 17 KB (1,894 words) - 22:20, 1 March 2024 |
Hafnium (redirect from Element 72) claims that element 72 was a rare earth element discovered in 1911, Dirk Coster and Georg von Hevesy were motivated to search for the new element in zirconium... 47 KB (5,413 words) - 09:56, 23 April 2024 |
doi:10.1126/science.180.4090.1059. PMID 17806582. Bau M. (1991). "Rare-earth element mobility during hydrothermal and metamorphic fluid-rock interaction... 5 KB (598 words) - 05:18, 23 November 2022 |
alkaline earth metals occur in nature, although radium occurs only through the decay chain of uranium and thorium and not as a primordial element. There... 71 KB (7,210 words) - 19:30, 3 April 2024 |