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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. It is soft enough to be cut with a knife.
Europium compounds are compounds formed by the lanthanide metal europium (Eu). 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 ...
There are 27 currencies currently used in the 50 countries of Europe. All de facto present currencies in Europe, and an incomplete list of the preceding currency, are listed here. In Europe, the most commonly used currency is the euro (used by 26 countries); any country entering the European Union (EU) is expected to join the eurozone [ 1 ...
Europium oxide is a compound from the two elements europium and oxygen. Europium oxide may refer to: Europium(II) oxide (europium monoxide, EuO) a magnetic semiconductor. Europium(III) oxide (europium sesquioxide, Eu 2 O 3), the most common oxide.
The euro is used in the 20 eurozone countries and 4 European microstates (dark blue). It is also used de facto in (Montenegro and Kosovo) (red). The euro came into existence on 1 January 1999. [2] The euro's creation had been a goal of the European Union (EU) and its predecessors since the 1960s. [2]
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Rare-earth element abundances of basalts, of both terrestrial and lunar origins [1]. The europium anomaly is the phenomenon whereby the europium (Eu) concentration in a mineral is either enriched or depleted relative to some standard, commonly a chondrite or mid-ocean ridge basalt (MORB).
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