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REE


rare earth element

希土(類)(元素). ランタニド.
rare earth element; or RE(rare earth); or rare earth atoms; or lanthanides; or REI(rare-earth ion); 17 atom(at.no., at.wt.) are; Sc(21, 44.9559), Y(39, 88.9059), La (57, 138.905), Ce (58, 140.12), Pr (59, 140.9077), Nd (60, 144.24)




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