superconductors, increases increase the strengths of alloys of metals such as chromium, aluminum, and magnesium, optical glasses, ceramics, color television tubes
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4.469
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1522
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3338
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+3
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(Ytterby,village in Sweden) Discovered by Gadolin in 1794 in Yttria, an earth containing Yttrium. Ytterby is a site which yielded several minerals containing rare earth elements. Other elements found there are erbium, terbium and ytterbium. Yttrium can be found in almost all rare-earth minerals. Moon rocks show high presence of yttrium.
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silvery luster, finely divided it becomes unstable in air, turnings ignite in air, transition metal