Atomic Structure of Promethium and Holmium
Electron Configuration
[Xe] 4f5 6s2
  
[Xe] 4f11 6s2
  
Crystal Structure
Double Hexagonal Close Packed (DHCP)
  
Hexagonal Close Packed (HCP)
  
Crystal Lattice
DHCP-Crystal-Structure-of-Promethium.jpg#100
  
HCP-Crystal-Structure-of-Holmium.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Atomic Weight
145.00 amu
  
99+
164.93 amu
  
99+
Atomic Volume
22.39 cm3/mol
  
12
18.70 cm3/mol
  
24
Adjacent Atomic Numbers
  
  
Valence Electron Potential
44.10 (-eV)
  
39
47.90 (-eV)
  
31
Lattice Constant
Not Available
  
Lattice Angles
Unknown
  
π/2, π/2, 2 π/3
  
Lattice C/A Ratio
Not Available