|
|
Rare earth element - Wikipedia, the free encyclopedia
|
|
As defined by IUPAC, rare earth elements or rare earth metals are a collection of seventeen chemical elements in the periodic table, namely scandium, yttrium, and the fifteen lanthanoids. Scandium...
en.wikipedia.org/wiki/Rare_earth_element
|
|
|
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.
|
minerals.usgs.gov/minerals/pubs/commodity/rare_earths/
minerals.usgs.gov/minerals/pubs/commodity/rare_earths/
|
|
|
|
Here's an update on North American domestic companies involved in the availability of the heavy rare earth elements and the future of high-tech manufacturing in the United States and Canada. ... The additionally needed basic "light" rare earth elements, LREEs, could and will ,hopefully be sourced from MolyCorp's Mountain...
|
www.resourceinvestor.com/News/2009/8/Pages/Heavy-rare-e...
www.resourceinvestor.com/News/2009/8/Pages/Heavy-rare-earth-elements-and-the-future-of-hightech-mfg-in-the-US.aspx
|
|
|
|
Learn about the common properties of the rare earths, which include the lanthanide and actinide series of elements. ... Rare Earth Elements - Elements in the Rare Earth Element Group...
|
chemistry.about.com/od/elementgroups/a/rareearths.htm
chemistry.about.com/od/elementgroups/a/rareearths.htm
|
|
|
The 30 rare earth elements are composed of the lanthanide and actinide series. One element of the lanthanide series and most of the elements in the actinide series are synthetic, that is, human-made. All of the rare earth metals are found in group 3 of the periodic table, and the 6th and 7th periods...
|
modelscience.com/PeriodicTable.html
|
|
The Rare Earth Elements ... The Rare Earth Elements (REE) are unusual in that all 15 have the same outer electron configuration, therefore they tend to have similar chemical behaviour. ... Ce is usually 10-20 times as abundant as the heaviest rare earth - Lu, and the whole series show a curious alternating high-low...
|
High-technology and environmental applications of the rare earth elements (REE) have grown dramatically in diversity and importance over the past four decades.
|
pubs.usgs.gov/fs/2002/fs087-02/
|
|
Elements classified as Rare Earth; The elements classified as "Rare Earth Elements" are located in Group 3 of the Periodic Table and in the 6th and 7th periods. The Rare Earth Elements are of the Lanthanide and Actinide series.
|
www.periodic-table.org.uk/rare-earth.htm
www.periodic-table.org.uk/rare-earth.htm
|
|
