Atomic Structure of Tantalum and Lanthanum
Electron Configuration
[Xe] 4f14 5d3 6s2
  
[Xe] 5d2 6s2
  
Crystal Structure
Body Centered Cubic (BCC)
  
Double Hexagonal Close Packed (DHCP)
  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100
  
DHCP-Crystal-Structure-of-Lanthanum.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Atomic Weight
138.91 amu
  
99+
Atomic Volume
10.90 cm3/mol
  
99+
20.73 cm3/mol
  
16
Adjacent Atomic Numbers
  
  
Valence Electron Potential
110.00 (-eV)
  
7
40.71 (-eV)
  
99+
Lattice Angles
π/2, π/2, π/2
  
π/2, π/2, 2 π/3
  
Lattice C/A Ratio
Not Available