yt·ter·bi·um /ɪˈtɝbiəm/
鐿
yt·ter·bi·um /ɪˈtɝbɪəm/ 名詞
Yt·ter·bi·um n. 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.
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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]
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.