Europium

Euro"pium

(?), n. [NL.; Europe + -ium, as in aluminium.] (Chem.) A metallic element of the rare-earth group (Lanthanide series), discovered spectroscopically by Demarcay in 1896. Symbol, Eu; atomic number 63; at. wt., 151.965 (C=12.011); valence = +2 or +3.
[Webster 1913 Suppl. +PJC]

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Wed 20th February 2019

Europium

Eu*ro"pi*um

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Euro"pium