Atomic Number 63     Atomic Mass 151.965     Density 5.2434 g/mL

State solid     Color silvery white     Electronegativity 1.2

Melting Point 822°C     Boiling Point 1597°C

Natural Isotopes Eu-151 47.8%   Eu-153 52.2%

Abbreviated Electron Configuration [Xe] 4f⁷ 6s²

Discovered by Eugene Demarcay in 1901.