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europium
[ yoo-roh-pee-uhm, yuh- ]
noun
, Chemistry.
- a rare-earth metallic element whose salts are light pink. : Eu; : 151.96; : 63.
europium
/ jʊˈrəʊpɪəm /
noun
- a soft ductile reactive silvery-white element of the lanthanide series of metals: used as the red phosphor in colour television and in lasers. Symbol: Eu; atomic no: 63; atomic wt: 151.965; valency: 2 or 3; relative density: 5.244; melting pt: 822°C; boiling pt: 1527°C
europium
/ y-rō′pē-əm /
- A very rare, silvery-white metallic element that is the softest member of the lanthanide series. It is used in making color television tubes and lasers and as a neutron absorber in nuclear research. Atomic number 63; atomic weight 151.96; melting point 826°C; boiling point 1,439°C; specific gravity 5.259; valence 2, 3.
- See Periodic Table
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Word History and Origins
Origin of europium1
C20: named after Europe + -ium
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