PERIODIC ELEMENT
Eu (Europium)

 



Atomic number : 63
Atomic mass : 167.26 g mol-1
Electronegativity according to Pauling : 1.2
Density : 9.2 g.cm-3 at 20 °C
Melting point : 1522 °C
Boiling point : 2510 °C
Vanderwaals radius : unknown
Ionic radius : unknown
Isotopes : 9
Electronic shell : [ Xe ] 4f12 6s2
Energy of first ionisation : 587.6 kJ.mol-1
Energy of second ionisation : 1149 kJ.mol-1
Standard potential : - 2.30 V
Discovered by : Carl Mosander in 1843
 
Atomic Structure Uses (color televisions)