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Properties of Metals - Metallurgy
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Europium
Atomic Number: 63
Symbol: Eu
Atomic Weight: 151.9655
Discovery: Boisbaudran 1890; Eugene-Antole Demarcay 1901 (France)
Electron Configuration: [Xe] 4f7 6s2
Element Classification: Rare Earth (Lanthanide)
Word 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 (@20°C J/g mol): 0.176
Evaporation Heat (kJ/mol): 176
Pauling Negativity Number: 0.0
First Ionizing Energy (kJ/mol): 546.9
Oxidation States: 3, 2
Lattice Structure: Body-Centered Cubic
Lattice Constant (Å): 4.610
References: Los Alamos National Laboratory (2001), Crescent Chemical Company (2001), Lange's Handbook of Chemistry (1952), CRC Handbook of Chemistry & Physics (18th Ed.)
Atomic Number: 63
Symbol: Eu
Atomic Weight: 151.9655
Discovery: Boisbaudran 1890; Eugene-Antole Demarcay 1901 (France)
Electron Configuration: [Xe] 4f7 6s2
Element Classification: Rare Earth (Lanthanide)
Word 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 (@20°C J/g mol): 0.176
Evaporation Heat (kJ/mol): 176
Pauling Negativity Number: 0.0
First Ionizing Energy (kJ/mol): 546.9
Oxidation States: 3, 2
Lattice Structure: Body-Centered Cubic
Lattice Constant (Å): 4.610
References: Los Alamos National Laboratory (2001), Crescent Chemical Company (2001), Lange's Handbook of Chemistry (1952), CRC Handbook of Chemistry & Physics (18th Ed.)
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