The rare-earth elements are widely used in electronics and other high-tech products. any element of the lanthanide series (atomic numbers 57 through 71) 2006 - WordNet 3.0 By Princeton University . 2. properties. ----- Abstract Rare earth elements (REEs) are a group of 15 chemical elements in the periodic table, specifically the lanthanides. Find definitions for: rare'-earth' el"ement. rare earth: [noun] any of a group of similar oxides of metals or a mixture of such oxides occurring together in widely distributed but relatively scarce minerals. The group consists of yttrium and the 15 lanthanide elements (lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium). The third row of the third column is expanded below the chart, listing the lanthanide series of elements. The rare earth element, cerium (45 to 50 percent), lanthanum (25 percent), neodymium (5 percent) is the major constituents of mischmetals. 57) in the periodic table of elements and that have oxides with similar properties. See also: element. aapg.org. Rare earth definition, the oxide of any of the rare-earth elements contained in various minerals. Rare-earth element definition, any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Conversion from Imperial to Metric Measurement Units … The rare-earth elements are widely used in electronics and other high-tech products. It is used for the production of different brands or types of steel with high corrosion resistance and workability. Tasmania. RARE EARTH ELEMENT 'RARE EARTH ELEMENT' is a 16 letter phrase starting with R and ending with T Synonyms, crossword answers and other related words for RARE EARTH ELEMENT We hope that the following list of synonyms for the word RARE EARTH ELEMENT will help you to finish your crossword today. The rare-earth elements (REE), also called the rare-earth metals or (in context) rare-earth oxides, or the lanthanides (though yttrium and scandium are usually included as rare-earths) are a set of 17 nearly-indistinguishable lustrous silvery-white soft heavy metals. U.S. Geological Survey news release "Going Critical". rare-earth element (râr′ûrth′) n. Any of a group of 17 naturally occurring metallic elements that have similar properties, consisting of scandium, yttrium, and the 15 elements with atomic numbers 57 through 71 (the lanthanides). rare earth definition: one of a group of metal chemical elements that are difficult to find in large quantities, and are…. This article delivers a novel economic analysis of US dependence on China for rare-earth elements and sheds light on how Western nations may exploit the limitations of limit pricing to break China’s global monopoly in rare-earth element production and refinement. A table laying out potential solutions to the global shortage of rare earth elements and their drawbacks. Rare earth elements are used to manufacture wind turbines and in the production of electronics, such as computers, cell phones, silicon chips, TV and computer monitors, rechargeable batteries, camera lenses, light emitting diodes (LEDs), compact fluorescent lamps, baggage scanners and marine propulsion systems. Scientists and engineers disagree on exactly which element should be included in a list of the rare earths, but they generally include the fifteen lanthanide elements, plus scandium and yttrium. 58-71 and includes praseodymium, promethium, and ytterbium. One of a series of metallic elements that follow lanthanum (at. A review of REE in Tasmanian rocks noted anomalous values of 18 ppm to 2182 ppm TREE 95. These include the fifteen lanthanides on the periodic table plus scandium and yttrium.. Rare earth elements are an essential part of many high-tech devices. Two other elements, scandium and yttrium, have a similar physiochemistry to the lanthanides, are commonly found in the same mineral assemblages, and are often referred to as REEs. This analytical framework, supported by a comprehensive literature … The two least abundant rare earth elements (thulium and lutetium) are nearly 200 times more common than gold. The group consists of yttrium and the 15 lanthanide elements (lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium). Chem. The technology is in its final form and operated under the full range of operating mission conditions. Scientists and engineers disagree on exactly which element should be included in a list of the rare earths, but they generally include the fifteen lanthanide elements, plus scandium and yttrium. Tasmania. Rare earth elements in WJE003 occurred in a similar environment with the best interval being 2 m @ 0.16% La, 0.32% Ce and 129 ppm Y from 759 m down-hole 94. Released 4 April 2022. Rare-Earth Elements. Rare-earth element definition: any element of the lanthanide series | Meaning, pronunciation, translations and examples However, in contrast to the ordinary base and precious metals, rare earth elements have very little tendency to become concentrated in exploitable ore deposits. Rare earth elements (REEs), which comprise of only 17 elements from the entire periodic table, play a critical role to our national security, energy independence, environmental future, and economic growth. Pronunciation: (râr'ûrth'), — Chem. The lanthanides are elements spanning atomic numbers 57 (lanthanum, La) to 71 (lutetium, Lu) (Table 1). nos. Rare earth elements are a group of seventeen chemical elements that occur together in the periodic table (see image). Lanthanum through samarium, as well as scandium and yttrium, are often termed the light rare earth elements (LREEs) and europium through lutetium are the heavy rare earth elements (HREEs). Rare earth oxides of gadolinium, praseodymium, cerium, samarium, lanthanum, and neodymium. Rare earth elements occur in many minerals but typically in concentrations too low to be refined in an economical manner; the concentration of REEs in the Earth's crust is estimated to be between 150 to 220 parts per million, which is higher than the concentration of other metals mined for industrial use, such as Cu or Zn. The series comprises the 14-element lanthanide series (at. 2). The rare earth element, cerium (45 to 50 percent), lanthanum (25 percent), neodymium (5 percent) is the major constituents of mischmetals. The magnetic field typically produced by rare-earth magnets can … The lanthanides all occur in nature, although promethium, the … The elements range in crustal abundance from cerium, the 25th most abundant element of the 78 common elements in the Earth's crust at 60 parts per million, to thulium and lutetium, the least abundant rare-earth elements at about 0.5 part per million. Tasmania has no recorded significant REE mineralisation. The elements range in crustal abundance from cerium, the 25th most abundant element of the 78 common elements in the Earth's crust at 60 parts per million, to thulium and lutetium, the least abundant rare-earth elements at about 0.5 part per million. Rare-earth element definition: any element of the lanthanide series | Meaning, pronunciation, translations and examples A rare-earth element. Below you will find example usage of this term as found in modern and/or classical literature: 1. It is used for the production of different brands or types of steel with high corrosion resistance and workability. Rare earth elements-bearing minerals, once separated, contain as many as 14 individual rare earth elements (lanthanides and yttrium) that must be further separated and refined. Rare earth elements are relatively plentiful in the earth’s crust, with cerium being the 25th most abundant element at 68 parts per million.This makes it as abundant as copper. correspond ing to the prog ressive filli ng of the 4f. Note, there is no such thing as REO in a geological environment. Literary usage of Rare-earth element. 2006 - WordNet 3.0; 2011 - English Dictionary Database; Sort: Oldest first . See more. Rare Earth Metals and Their Applications . Critical Mineral … no. (Lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, and lutetium). Rare earth elements are a group of seventeen chemical elements that occur together in the periodic table (see image). The rare earth elements (REEs) or rare earth metals (REMs) are a group of metals found within the same ores and possessing similar chemical properties. Rare earth elements occur in many minerals but typically in concentrations too low to be refined in an economical manner; the concentration of REEs in the Earth's crust is estimated to be between 150 to 220 parts per million, which is higher than the concentration of other metals mined for industrial use, such as Cu or Zn. A rare-earth element (REE) or rare-earth metal (REM), as defined bi IUPAC, is ane o a set o seventeen chemical elements in the periodic cairt, specifically the fifteen lanthanides, as well as scandium an yttrium.Scandium an yttrium are considered rare-earth elements acause thay tend tae occur in the same ore deposits as the lanthanides an exhibit seemilar chemical properties. Any of various oxides of the rare-earth elements. Rare earth elements in WJE003 occurred in a similar environment with the best interval being 2 m @ 0.16% La, 0.32% Ce and 129 ppm Y from 759 m down-hole 94. It is an excellent scavenger for the adsorption of elements like oxygen and sulfur. A review of REE in Tasmanian rocks noted anomalous values of 18 ppm to 2182 ppm TREE 95. See more. See more. By Bradley S. Van Gosen, Philip L. Verplanck, Robert R. Seal II, Keith R. Long, and Joseph Gambogi Chapter O of. The rare earth elements are often described as being a 'light-group rare earth element' (LREE) or 'heavy-group rare earth element' (HREE). Rare Element Resources Ltd. is a publicly traded mineral resource company focused on exploration and development of rare-earth element deposits that carry a favorable distribution of critical rare earths. no. 4. By Bradley S. Van Gosen, Philip L. Verplanck, Robert R. Seal II, Keith R. Long, and Joseph Gambogi Chapter O of. Examples include using the actual system with the full range of wastes in hot operations. Rare earth element synonyms, Rare earth element pronunciation, Rare earth element translation, English dictionary definition of Rare earth element. Rare-Earth Elements. Scandium and Yttrium are listed as rare earth metals, although they are not part of the lanthanide series. Rare-earth element definition, any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. The rare earth elements (REEs) or rare earth metals (REMs) are a group of metals found within the same ores and possessing similar chemical properties. The series comprises the 14-element lanthanide series (at. This means they are not often found in concentrated enough clusters to make them viable to mine. [rare earth.] The definition of a LREE and HREE is based on the electron configuration of each rare-earth element. In the periodic table of the elements, the third column lists the rare earth elements. Rare-earth-element as a noun means Any of the abundant metallic elements of atomic number 57 through 71.. Rare earth elements are chemically similar and are sometimes used in similar ways. Learn more. 58-71 and includes praseodymium, promethium, and ytterbium. Below is a description of REEs as they will be used on this website: REO is the mathematical sum of La-Lu plus Y as their common oxides. This group contains elements of yttrium, scandium and 15 lanthanides. Definition. Rare earth elements (REE) are getting a lot of attention lately. ClearIAS Prelims Test Series 2022They are also known as rare earth metals because all of them are metals.They are also known as rare earth oxides because it is very rare to find their oxides.REMs have very diverse uses starting from daily life technologies to high-end technologies and military use.The USA is the largest producer of REMs. Rare Earth Elements. the 16 consecutive elements of the periodic table. Two competing bills designed to clarify who can profit from the extraction of rare earth elements and critical minerals essential to technology products and national security are making their way through the Legislature. The House Judiciary Committee on ... Scandium and Yttrium are listed as rare earth metals, although they are not part of the lanthanide series. 57) in the periodic table of elements and that have oxides with similar properties. Definitions of RARE-EARTH ELEMENT. It is an excellent scavenger for the adsorption of elements like oxygen and sulfur. The rare earth elements (REEs) or rare earth metals (REMs) are a group of metals found within the same ores and possessing similar chemical properties. DOD has a particular interest in two heavy rare earth elements, yttrium and dysprosium. The rare earth elements (REE) are a set of seventeen metallic elements. Definitions and characteristics The rare earth elements (REE) (sometimes referred to as the rare earth metals) are a group of 17 chemically similar metallic elements, including the 15 lanthanides, scandium and yttrium. Define rare-earth-element. The rare earth elements (REEs) or rare earth metals (REMs) are a group of metals found within the same ores and possessing similar chemical properties. Scientists and engineers disagree on exactly which element should be included in a list of the rare earths, but they generally include the fifteen lanthanide elements, plus scandium and yttrium. The LREE are defined as lanthanum, atomic number 57 through gadolinium, atomic number 64. Rare-earth magnets are strong permanent magnets made from alloys of rare-earth elements.Developed in the 1970s and 1980s, rare-earth magnets are the strongest type of permanent magnets made, producing significantly stronger magnetic fields than other types such as ferrite or alnico magnets. Critical Minerals Sustainability Technology Readiness Levels. American Heritage® Dictionary of the … The rare earth elements (also referred to as rare earth metals) are include seventeen metals in the periodic table. Scandium and yttrium are considered rare-earth elements because they tend to occur in the same oredeposits as the lanthanid… The meaning of RARE EARTH ELEMENT is any of a series of metallic elements of which the oxides are classed as rare earths and which include the elements of the lanthanide series and sometimes yttrium and scandium —called also rare earth metal. The Company is advancing development of the 100% owned Bear Lodge Project, located in northeast Wyoming.. n. 1. rare-earth element (râr′ûrth′) n. Any of a group of 17 naturally occurring metallic elements that have similar properties, consisting of scandium, yttrium, and the 15 elements with atomic numbers 57 through 71 (the lanthanides). They’re much more abundant in the Earth’s crust than many other valuable elements. rare earth element. Rare earth metals include: rare earth elements—17 elements in the periodic table, the 15 lanthanides plus scandium and yttrium; six platinum group elements; and other byproduct metals that occur in copper, gold, uranium, phosphates, iron or zinc ores. rare earth element. Lanthanides: The series of chemical elements comprising the fifteen metallic chemical elements with atomic numbers 57 through 71, from lanthanum through to lutetium. Because of their geochemical properties, rare earth elements are typically dispersed. rare earth element ( plural rare earth elements ) ( chemistry) Any of a group of seventeen soft, lustrous, sometimes magnetic metals that form trivalent salts; they include the lanthanides plus yttrium, scandium, thorium and sometimes zirconium. One of a series of metallic elements that follow lanthanum (at. The meaning of RARE EARTH ELEMENT is any of a series of metallic elements of which the oxides are classed as rare earths and which include the elements of the lanthanide series and sometimes yttrium and scandium —called also rare earth metal. [rare earth.] The rare earth elements (REE), or lanthanides, comprise. The complexity of extracting and refining rare earth elements is illustrated by a metallurgical flow sheet for the Mountain Pass mine in California (fig. rare-earth element: Meaning and Definition of. nos. The Rare Earth Elements (REE), also simply called Rare Earths (RE) or Rare. Rare Earth Elements (REE) defined from our perspective (It’s always good to define the terms!). There are really four options:Carry the unrefined ore back in spaceships.Try to refine the materials and haul refined metals back in spaceships. ...Launch the ore (or the refined metals) back into an Earth transit orbit using a rail gun or and be VERY, VERY sure to catch them again at the other ...More items... See also: element. An International Spent Nuclear Fuel Storage Facility: Exploring a Russian by Glenn E. Schweitzer, A. Chelsea Sharber (2005) "The Nd and Eu in rocks and minerals compose from 10—25 to 0.5—2 percent of the total rare earth element amount. Even the rarest rare earth, thulium, with atomic number 69, is 125 times more common than gold. Critical Mineral … Photo courtesy of USDA ARS. Rare Earth Metals and Their Applications . Some call this total REO, TREO, TREO + Y, or YREO. The third row of the third column is expanded below the chart, listing the lanthanide series of elements. These fifteen lanthanide elements, along with the chemically similar elements scandium and yttrium, are often collectively known as the rare earth elements. Tasmania has no recorded significant REE mineralisation. Scientists and engineers disagree on exactly which element should be included in a list of the rare earths, but they generally include the fifteen lanthanide elements, plus scandium and yttrium. pubs.acs.org. In the periodic table of the elements, the third column lists the rare earth elements. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. According to the United States Geological Survey, heavy rare earth elements are generally less abundant and more expensive due to their scarcity, more unique characteristics, and strong demand relative to the light rare earth elements. Also called

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