The rare-earth elements are a set of 17 silvery-white, soft, heavy metals found in the middle of the periodic table that are valued for their useful electrical, magnetic and luminescent properties that find application in assorted high technology devices. For example, cerium, lanthanum, neodymium and praseodymium are found in nickel-metal hydride (NiMH) batteries — both of the household…
Discussion about this post