Atomic Structure of Protactinium and Cerium
Electron Configuration
[Rn] 5f2 6d1 7s2
  
[Xe] 4f1 5d1 6s2
  
Crystal Structure
Tetragonal (TETR)
  
Double Hexagonal Close Packed (DHCP)
  
Crystal Lattice
TETR-Crystal-Structure-of-Protactinium.jpg#100
  
DHCP-Crystal-Structure-of-Cerium.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Atomic Weight
140.12 amu
  
99+
Atomic Volume
15.00 cm3/mol
  
34
20.67 cm3/mol
  
17
Adjacent Atomic Numbers
  
  
Valence Electron Potential
92.00 (-eV)
  
11
41.78 (-eV)
  
99+
Lattice Angles
π/2, π/2, π/2
  
π/2, π/2, 2 π/3
  
Lattice C/A Ratio
Not Available
  
Not Available