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Europium - Dictionary Definition and Overview |
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Europium : (noun)
1: a bivalent and trivalent metallic element of the rare earth
group [syn: Eu, atomic number 63]
Based on WordNet 2.0
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Europium : \Eu*ro"pi*um\, n. [NL.; Europe _ -ium, as in
aluminium.] (Chem.)
A metallic element of the rare-earth group, discovered
spectroscopically by Demarcay in 1896. Symbol, Eu; at. wt.,
152.0.
Based on Webster's Revised Unabridged Dictionary
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Europium : Symbol: Eu
Atomic number: 63
Atomic weight: 151.25
Soft silvery metallic element belonging to the lanthanoids. Eu-151 and
Eu-153 are the only two stable isotopes, both of which are neutron
absorbers. Discovered in 1889 by Sir William Crookes.
Based on Webster's Revised Unabridged Dictionary (1913)
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