
Why are rare Earth metals important?
TechStuff
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Rare Earth Metals
Lanthanoids, which is the elements with atomic numbers 57 through 71, are technically rare earth metals. Cobalt, manganese, cerium, europeum, dysphorium, um, terbium, scandium. There's a gallium, indium, selenium, tellurium, silicon,. zinc, vanadium, lithium, platinum, neodymium.
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