Ytterbium
Atomic Number: 70
Symbol: Yb
Atomic Weight: 173.04
Discovery: Jean de Marignac 1878 (Switzerland)
Electron Configuration: [Xe] 4f14 6s2
Element Classification: Rare Earth (Lanthanide)
Word Origin: Named for the Swedish village of Ytterby.
Density (g/cc): 6.9654
Melting Point (K): 1097
Boiling Point (K): 1466
Appearance: silvery, lustrous, malleable, and ductile metal
Atomic Radius (pm): 194
Atomic Volume (cc/mol): 24.8
Ionic Radius: 85.8 (+3e) 93 (+2e)
Specific Heat (@20°C J/g mol): 0.145
Fusion Heat (kJ/mol): 3.35
Evaporation Heat (kJ/mol): 159
Pauling Negativity Number: 1.1
First Ionizing Energy (kJ/mol): 603
Oxidation States: 3, 2
Lattice Structure: Face-Centered Cubic
Lattice Constant (Å): 5.490
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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