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Europium is a chemical element; it has symbol Eu and atomic number 63. It is a silvery-white metal of the lanthanide series that reacts readily with air to form a dark oxide coating. Europium is the most chemically reactive, least dense, and softest of the lanthanides.
In these compounds, europium generally exhibits the +3 oxidation state, such as EuCl 3, Eu(NO 3) 3 and Eu(CH 3 COO) 3. Compounds with europium in the +2 oxidation state are also known. The +2 ion of europium is the most stable divalent ion of lanthanide metals in aqueous solution. [2] Many europium compounds fluoresce under ultraviolet light ...
Europium(III) oxide (Eu 2 O 3), is a chemical compound of europium and oxygen. It is widely used as a red or blue phosphor in television sets and fluorescent lamps , and as an activator for yttrium -based phosphors.
Europium(II) sulfide is the inorganic compound with the chemical formula EuS. It is a black, air-stable powder . Europium possesses an oxidation state of +II in europium sulfide, whereas the lanthanides exhibit a typical oxidation state of +III. [ 1 ]
Europium(III) chloride is an inorganic compound with the formula EuCl 3. The anhydrous compound is a yellow solid. Being hygroscopic it rapidly absorbs water to form a white crystalline hexahydrate , EuCl 3 ·6H 2 O, which is colourless.
Europium(II) chloride is an inorganic compound with a chemical formula EuCl 2. When it is irradiated by ultraviolet light, it has bright blue fluorescence. When it is irradiated by ultraviolet light, it has bright blue fluorescence.
Europium(II) oxide (EuO) is a chemical compound which is one of the oxides of europium. In addition to europium(II) oxide, there is also europium(III) oxide and the mixed valence europium(II,III) oxide .
Pages in category "Europium compounds" The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes. * Europium compounds; E.