Ytterbium
Symbol
Yb
Atomic Number
70
Atomic Weight
173.04
Element Classification
Discovered By
Jean de Marignac
Discovery Date
1878 (Switzerland)
Name 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
Covalent Radius (pm)
n/a
Ionic Radius
85.8 (+3e) 93 (+2e)
Specific Heat
0.145
Fusion Heat (kJ/mol)
3.35
Evaporation Heat (kJ/mol)
159
Thermal Conductivity (@25°C W/m K)
(34.9)
Debye Temperature (K)
n/a
Pauling Negativity Number
1.1
First Ionizing Energy (kJ/mol)
603
Oxidation States
3, 2
Electronic Configuration
[Xe] 4f14 6s2
Lattice Structure
Face-Centered Cubic(FCC)
Lattice Constant
5.490
Lattice C/A Ratio
n/a
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