A rare-earth metallic element whose salts are light pink. Symbol: Eu; atomic weight: 151.96; atomic number: 63.
Europium is a chemical element with the symbol Eu and atomic number 63. It belongs to the lanthanide series, a group of elements located in the f-block of the periodic table. Europium is a soft, silvery-white metal that is highly reactive and can ignite in air at room temperature. It is the most reactive of the rare earth elements and can react with water to produce hydrogen gas.
The history of mass spectrometry has its roots in physical and chemical studies regarding the nature of matter.
Mass spectrometry (MS) is an analytical technique that is used to measure the mass-to-charge ratio of ions. The results are presented as a mass spectrum, a plot of intensity as a function of the mass-to-charge ratio. Mass spectrometry is used in many different fields and is applied to pure samples as well as complex mixtures.