The 15 lanthanides (or lanthanoids), [a] along with scandium and yttrium, are usually included as rare earths Look up ree in wiktionary, the free dictionary. Rare earth elements (ree) are becoming increasingly important in electronic devices used in the defense, alternative energy, and communications industries
Minable deposits of rees are found in only a few locations. The rare earth elements (ree) comprise a group of 16 chemically very similar elements that occur widespread in rocks, soils, and water bodies, share similar ionic radii to the essential element ca 2+, and consequently also occur in biota. We support the geospatial component of mineral resources program research and provide public access to research results and geospatial information
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. The rare earth elements (rees) are comprised of the lanthanide elements plus scandium and yttrium, which have similar physical properties and are often found in the same ores and deposits.
