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== गुण ==
युरोपियम [[रेर अर्थ तत्त्व]]य् दक्ले रियाक्टिभ तत्त्व ख। थ्व तत्त्व वातावरणय् छकलं अक्सिडाइज जुइ व थुकिया लनापया रियाक्सन क्याल्सियमया थें न्यागु जुइ। थ्व धातुया ठोस रुपयात मिनरल चिकंनं भुनातःसां थुकिलि शाइन दैमखु। युरोपियम वायुइ १५०-१८०डि॰से॰य् च्याइ। थ्व तत्त्व लिड ति हे कडा जु व सिक्क [[डक्टाइल]] नं जु। युरोपियम छगू धातु ख व थ्व ८०जिपास्कलय् १.८ केल्भिनय् सुपरकन्डक्टर जुइ। <ref>{{cite journal| author = M. Debessai et al. | title = Pressure-Induced Superconducting State of Europium Metal at Low Temperatures| journal = Phys. Rev. lett.| doi = 10.1103/PhysRevLett.102.197002| volume =102| page =197002| year = 2009}}</ref>
 
== Applications ==
[[किपा:Aperture Grille.jpg|left|thumb|Europium is one of the elements used to make the red color in CRT televisions.]]
There are many commercial applications for europium metal, it has been used to [[dopant|dope]] some types of [[glass]] to make [[laser]]s, as well as for screening for [[Down syndrome]] and some other genetic diseases. Due to its amazing ability to absorb neutrons, it is also being studied for use in nuclear reactors. Europium oxide (Eu<sub>2</sub>O<sub>3</sub>) is widely used as a red [[phosphor]] in [[Cathode ray tube|television sets]] and [[fluorescent lamps]], and as an activator for [[yttrium]]-based phosphors. Whereas trivalent europium gives red phosphors, the luminescence of divalent europium depends on the host lattice, but tends to be on the blue side. The two europium phosphor classes (red and blue), combined with the yellow/green terbium phosphors give "white" light, the color temperature of which can be varied by altering the proportion or specific composition of the individual phosphors. This is the phosphor system typically encountered in the helical fluorescent lightbulbs. Combining the same three classes is one way to make trichromatic systems in TV and computer screens. It is also being used as an agent for the manufacture of fluorescent glass. <!--A salt of Europium is a component of the newer phosphorescent powders and paints, some of which will glow for days after a few minutes of exposure to light. PLEASE SEE TALK --> Europium fluorescence is used to interrogate biomolecular interactions in drug-discovery screens. It is also used in the anti-counterfeiting phosphors in [[Euro]] banknotes. <ref> Europium and the Euro [http://www.smarterscience.com/eurosandeuropium.html]</ref>
 
Europium is commonly included in trace element studies in [[geochemistry]] and [[petrology]] to understand the processes that form [[igneous rocks]] (rocks that cooled from [[magma]] or [[lava]]). The nature of the [[europium anomaly]] found is used to help reconstruct the relationships within a suite of igneous rocks.
 
== History ==