Samarium
 
  
    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