Properties of Europium
Atomic Mass - 151.96
Atomic Number - 63
Protons - 63
Electrons - 63
Neutrons - 89
Density - 5.26 g/ml
Melting Point - 826*C (1519*F)
Boiling Point - 1527*C (2781*F)
In this next set of information the natural abundance of Europium is measured in ppb of atoms. Europium's abundance in the universe as a whole is .004 ppb, this is also the same abundance of the amount of Europium in the sun. The abundance of Europium in crustal rocks however comes out to 240 ppb. Aside from these, the natural abundance of the Europium's isotope 151Eu is 47.8% while its other isotope 153Eu has a larger abundance of 52.2%.
Europium has an atomic number of 63 and an atomic mass of 151.96. It has 63 protons and 63 electrons as well as 89 neutrons. Europium in its natural state is a silvery, shiny metal that is as hard as lead. However, it is also the most reactive of the rare earth metals. As soon as Europium comes into contact with oxygen it loses its shine and becomes dull and gray. Europium is most often compared with calcium in its reactions, especially those with water. Europium also quickly oxidizes when it comes into contact with air, to form the dull Europium oxide.
Compounds and Isotopes of Europium
Interesting Facts About Europium
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