Europium ( ) is a chemical element with the symbol Eu and atomic number 63. It is named after the continent of Europe. It is a moderately hard silvery metal which readily oxidizes in air and water. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3, but the oxidation state +2 is also common: all europium compounds with oxidation state +2 are slightly reducing. Europium has no significant biological role and is relatively non-toxic compared to other heavy metals. Most applications of europium exploit the phosphorescence of europium compounds.
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| - Europium ( ) is a chemical element with the symbol Eu and atomic number 63. It is named after the continent of Europe. It is a moderately hard silvery metal which readily oxidizes in air and water. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3, but the oxidation state +2 is also common: all europium compounds with oxidation state +2 are slightly reducing. Europium has no significant biological role and is relatively non-toxic compared to other heavy metals. Most applications of europium exploit the phosphorescence of europium compounds.
- Europium (symbol Eu) is a chemical element, atomic number 63 on the periodic table.
- Europium ist ein Element mit dem chemischen Symbol Eu. Dieses Metall trägt die Ordnungszahl 63. Bei der Schilderung der ungewöhnlichen Zusammensetzung der Braunen Zwergsterne erwähnt Data, dass auf den meisten Planeten das seltene Element Europium entweder mit Samarium oder Gadolinium veredelt wird. (TNG: )
- Europium is a rare earth element, number 63 on the periodic table. In 2365, while Ambassador Lwaxana Troi was visiting the USS Enterprise, she was particularly after Captain Jean-Luc Picard and to avoid being alone with her, he invited Lieutenant Commander Data to come by and provide them with some "interesting facts." He explained that for most stars, the rare earth element europium is enriched relative to samarium and gadolinium. However in brown dwarf stars, the element europium is anomalously depleted. (TNG: "Manhunt" ) Europium was named for the continent of Europe.
- Europium is a metal about as hard as lead and is quite ductile. It becomes a superconductor when it is simultaneously at both high pressure (80 GPa) and at low temperature (1.8 K). The occurrence of superconductivity is due to the applied pressure driving europium from a divalent (J = 7/2) state into a trivalent (J = 0) state. In the divalent state, the strong local magnetic moment is thought to play a role in suppressing the superconductivity and so through eliminating this local moment the opportunity for superconductivity arises.
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| - Paul Émile Lecoq de Boisbaudran
- europium
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| - 63(xsd:integer)
- named after 'Europe'
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| - Europium ( ) is a chemical element with the symbol Eu and atomic number 63. It is named after the continent of Europe. It is a moderately hard silvery metal which readily oxidizes in air and water. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3, but the oxidation state +2 is also common: all europium compounds with oxidation state +2 are slightly reducing. Europium has no significant biological role and is relatively non-toxic compared to other heavy metals. Most applications of europium exploit the phosphorescence of europium compounds.
- Europium (symbol Eu) is a chemical element, atomic number 63 on the periodic table.
- Europium ist ein Element mit dem chemischen Symbol Eu. Dieses Metall trägt die Ordnungszahl 63. Bei der Schilderung der ungewöhnlichen Zusammensetzung der Braunen Zwergsterne erwähnt Data, dass auf den meisten Planeten das seltene Element Europium entweder mit Samarium oder Gadolinium veredelt wird. (TNG: )
- Europium is a rare earth element, number 63 on the periodic table. In 2365, while Ambassador Lwaxana Troi was visiting the USS Enterprise, she was particularly after Captain Jean-Luc Picard and to avoid being alone with her, he invited Lieutenant Commander Data to come by and provide them with some "interesting facts." He explained that for most stars, the rare earth element europium is enriched relative to samarium and gadolinium. However in brown dwarf stars, the element europium is anomalously depleted. (TNG: "Manhunt" ) Europium was named for the continent of Europe.
- Europium is a metal about as hard as lead and is quite ductile. It becomes a superconductor when it is simultaneously at both high pressure (80 GPa) and at low temperature (1.8 K). The occurrence of superconductivity is due to the applied pressure driving europium from a divalent (J = 7/2) state into a trivalent (J = 0) state. In the divalent state, the strong local magnetic moment is thought to play a role in suppressing the superconductivity and so through eliminating this local moment the opportunity for superconductivity arises.
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