Europium
Symbol
Eu
Atomic Number
63
Atomic Weight
151.965
Element Classification
Discovered By
Eugene-Antole Demarcay
Discovery Date
1901 (France)
Name Origin
Named for the continent of Europe.
Density (g/cc)
5.243
Melting Point (K)
1095
Boiling Point (K)
1870
Appearance
Soft, silvery-white metal
Atomic Radius (pm)
199
Atomic Volume (cc/mol)
28.9
Covalent Radius (pm)
185
Ionic Radius
95 (+3e) 109 (+2e)
Specific Heat
0.176
Fusion Heat (kJ/mol)
n/a
Evaporation Heat (kJ/mol)
176
Thermal Conductivity (@25°C W/m K)
13.9
Debye Temperature (K)
n/a
Pauling Negativity Number
0.0
First Ionizing Energy (kJ/mol)
546.9
Oxidation States
3, 2
Electronic Configuration
[Xe] 4f7 6s2
Lattice Structure
Body-Centered Cubic(BCC)
Lattice Constant
4.610
Lattice C/A Ratio
n/a
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