Ytterbium

Definitions

1. A metallic chemical element (symbol Yb) with an atomic number of 70.
   uncountable, usually
2. A single atom of this element.
   uncountable, usually

Equivalents

Examples

“At a meeting of the Russian Chemical Society held October 20, 1881 (and reported in the Bulletin de la Société Chimique de Paris, for August, 1882), Mendelejeff [Dmitri Mendeleev], the distinguished author of the periodic law, remarked that only two of the recently announced elements—scandium and ytterbium—had been satisfactorily confirmed. These have⟳ been obtained in a pure state by [Lars Fredrik] Nilson, and neither of them has absorption spectra.”

“The lanthanides samarium, europium and ytterbium possess⟳ relatively stable and long-known dispositive states.”

“Ytterbium is a silvery, soft, malleable, and ductile metal with a lustrous metallic shine⟳. It is slightly reactive in air or water at room temperatures. Ytterbium is located next to last⟳ of the rare-earths in the lanthanide series.”

“Microstructural optical fibers have⟳ been developed that have⟳ utilized phosphate-based glasses due to their ability to solubilize rare earth components such as ytterbium, which give⟳ the fibers their high light⟳ absorption and amplification per unit length.”

CEFR level