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Samarium

Sm Samarium
62
150.36
9
Symbol
Sm
Atomic Number
62
Atomic Weight
150.36
Discovered By
Jean Charles Galissard de Marignac
Discovery Date
1853 (France)
Name Origin
Named after the mineral samarskite.
Density (g/cc)
7.520
Melting Point (K)
1350
Boiling Point (K)
2064
Appearance
Silvery rare-earth metal
Atomic Radius (pm)
181
Atomic Volume (cc/mol)
19.9
Covalent Radius (pm)
162
Ionic Radius
96.4 (+3e)
Specific Heat
0.180
Fusion Heat (kJ/mol)
8.9
Evaporation Heat (kJ/mol)
165
Thermal Conductivity (@25°C W/m K)
(13.3)
Debye Temperature (K)
166.00
Pauling Negativity Number
1.17
First Ionizing Energy (kJ/mol)
540.1
Oxidation States
3, 2
Electronic Configuration
[Xe] 4f6 6s2
Lattice Structure
Rhombohedral(RHL)
Lattice Constant
9.000
Lattice C/A Ratio
n/a

KEY

SEE ALSO

Samarium

Columbia Encyclopedia

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