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Atomic Structure of Zirconium and Lanthanum

Zirconium
Lanthanum
Atomic Structure of Lanthanum and Zirconium


Atomic Properties
Atomic Number
40   
99+
57   
99+
Electron Configuration
[Kr] 4d2 5s2   
[Xe] 5d2 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Double Hexagonal Close Packed (DHCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Zirconium.jpg#100   
DHCP-Crystal-Structure-of-Lanthanum.jpg#100   
Atom
  
  
Number of Protons
40   
99+
57   
99+
Number of Neutrons
51   
99+
82   
99+
Number of Electrons
40   
99+
57   
99+
Radius of an Atom
  
  
Atomic Radius
160.00 pm   
27
187.00 pm   
8
Covalent Radius
175.00 pm   
23
207.00 pm   
6
Van der Waals Radius
200.00 pm   
28
240.00 pm   
13
Atomic Weight
91.22 amu   
99+
138.91 amu   
99+
Atomic Volume
14.10 cm3/mol   
36
20.73 cm3/mol   
16
Adjacent Atomic Numbers
  
  
Previous Element
Yttrium
  
Barium
  
Next Element
Niobium
  
Cerium
  
Valence Electron Potential
80.00 (-eV)   
18
40.71 (-eV)   
99+
Lattice Constant
323.20 pm   
99+
377.20 pm   
28
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.59   
8
1.62   
2
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