europium

[ yoo-roh-pee-uhm, yuh- ]

noun

, Chemistry.

1. a rare-earth metallic element whose salts are light pink. : Eu; : 151.96; : 63.

europium

/ jʊˈrəʊpɪəm /

noun

1. 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 /

1. 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.
2. See Periodic Table

Word History and Origins

Origin of europium¹

First recorded in 1900–05; Europe + -ium

Word History and Origins

Origin of europium¹

C20: named after Europe + -ium

Example Sentences

Stars dating back to the early universe contain r-process elements such as europium, suggesting the process began early.

From Science Magazine

Found at the very bottom of the periodic table, rare earth elements, such as europium, have shown promise for use in quantum information devices due to their unique atomic structures.

From Science Daily

Researchers found that during the first three hours after adding the europium complex, larger changes in the lifetime of the light emission occurred in the more malignant cells.

From Science Daily

The 17 elements are: lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, yttrium.

From Reuters

Yttrium and europium, for instance, light up iPhone displays and allow them to vibrate.

From Washington Post