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Atomic Structure of Zirconium and Protactinium


Atomic Structure of Protactinium and Zirconium


Atomic Properties

Atomic Number
40   
99+
91   
27

Electron Configuration
[Kr] 4d2 5s2   
[Rn] 5f2 6d1 7s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Tetragonal (TETR)   

Crystal Lattice
HCP-Crystal-Structure-of-Zirconium.jpg#100   
TETR-Crystal-Structure-of-Protactinium.jpg#100   

Atom
  
  

Number of Protons
40   
99+
91   
27

Number of Neutrons
51   
99+
122   
21

Number of Electrons
40   
99+
91   
27

Radius of an Atom
  
  

Atomic Radius
160.00 pm   
27
163.00 pm   
25

Covalent Radius
175.00 pm   
23
200.00 pm   
11

Van der Waals Radius
200.00 pm   
28
243.00 pm   
11

Atomic Weight
91.22 amu   
99+
231.04 amu   
24

Atomic Volume
14.10 cm3/mol   
36
15.00 cm3/mol   
34

Adjacent Atomic Numbers
  
  

Previous Element
Yttrium
  
Thorium
  

Next Element
Niobium
  
Uranium
  

Valence Electron Potential
80.00 (-eV)   
18
92.00 (-eV)   
11

Lattice Constant
323.20 pm   
99+
392.50 pm   
23

Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   

Lattice C/A Ratio
1.59   
8
Not Available   

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