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ytterbium |
3 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Ytterbium \Yt*ter"bi*um\, n. [NL., fr Ytterby in Sweden. See {Erbium}.] (Chem.) A rare element of the boron group sometimes associated with yttrium or other related elements, as in euxenite and gadolinite. Symbol Yb provisional atomic weight 173.2. Cf {Yttrium}. Note: Ytterbium is associated with other rare elements, and probably has not been prepared in a pure state. From WordNet r 1.6 [wn]: ytterbium n : a soft silvery metallic element; a rare earth of the lanthanide series; it occurs in gadolinite and monazite and xenotime [syn: {Yb}, {atomic number 70}] From Elements database 20001107 [elements]: ytterbium Symbol: Yb Atomic number: 70 Atomic weight: 173.04 Silvery metallic element of the lanthanoids. Seven natural isotopes and ten artificial isotopes are known Used in certain steels. Discovered by J.D.G. Marignac in 1878.
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