Samarium

Sm
Samarium
Rare Earth

 

Atomic number:
 62
Atomic weight:
 150.36
Shells:
 2,8,18,24,8,2
Orbitals:
 [Xe] 4f6 6s2
Melting point:
 1074°C
Boiling point:
 1794°C
Covalent radius:
 1.62
Å
Atomic volume:
 19.95
cm³/mol
Atomic radius:
 2.59
Å
Ionic radius:
 1.08 (+3)
Å
Electronegativity:
 1.17
Oxidation states:
 (3),2
1st ionization pot.:
 5.6437
V
2nd ionization pot.:
 11.069
V
3rd ionization pot.:
 23.423
V
Specific heat:
 0.20
J/gK
Heat of fusion:
 8.630
kJ/mol
Heat of vapor.:
 166.40
kJ/mol
Thermal conduct.:
 0.133
W/cmK
Electrical conduct.:
 0.00956
10^6/cm ohm
Density:
 7.54
g/cm³
Valence:
 2,3