Atomic Structure of Promethium and Europium
Electron Configuration
[Xe] 4f5 6s2
  
[Xe] 4f7 6s2
  
Crystal Structure
Double Hexagonal Close Packed (DHCP)
  
Body Centered Cubic (BCC)
  
Crystal Lattice
DHCP-Crystal-Structure-of-Promethium.jpg#100
  
BCC-Crystal-Structure-.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Atomic Weight
145.00 amu
  
99+
151.96 amu
  
99+
Atomic Volume
22.39 cm3/mol
  
12
28.90 cm3/mol
  
8
Adjacent Atomic Numbers
  
  
Valence Electron Potential
44.10 (-eV)
  
39
45.60 (-eV)
  
35
Lattice Constant
Not Available
  
Lattice Angles
Unknown
  
π/2, π/2, π/2
  
Lattice C/A Ratio
Not Available
  
Not Available