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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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Example Sentences
Particularly important are its unusually high amounts of nitrogen, zinc, and heavy elements including europium and uranium.
From Singularity Hub
One turning point came in 2015, when Bartholomew, Sellars and colleagues designed a memory device made from europium nuclei embedded in a crystal that could store fragile quantum states for six hours, with the potential to extend this to days.
From Quanta Magazine
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