Atomic Structure of Praseodymium and Samarium
Electron Configuration
[Xe] 4f3 6s2
  
[Xe] 4f6 6s2
  
Crystal Structure
Hexagonal Close Packed (HCP)
  
Rhombohedral (RHO)
  
Crystal Lattice
HCP-Crystal-Structure-of-Praseodymium.jpg#100
  
RHO-Crystal-Structure-of-Samarium.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Atomic Weight
140.91 amu
  
99+
150.36 amu
  
99+
Atomic Volume
20.80 cm3/mol
  
15
19.95 cm3/mol
  
19
Adjacent Atomic Numbers
  
  
Valence Electron Potential
42.64 (-eV)
  
99+
44.80 (-eV)
  
37
Lattice Angles
π/2, π/2, 2 π/3
  
π/2, π/2, 2 π/3
  
Lattice C/A Ratio
Not Available