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Atomic Structure of Zirconium and Actinium


Atomic Structure of Actinium and Zirconium


Atomic Properties

Atomic Number
40   
99+
89   
29

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

Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   

Crystal Lattice
HCP-Crystal-Structure-of-Zirconium.jpg#100   
FCC-Crystal-Structure-of-Actinium.jpg#100   

Atom
  
  

Number of Protons
40   
99+
89   
29

Number of Neutrons
51   
99+
138   
16

Number of Electrons
40   
99+
89   
29

Radius of an Atom
  
  

Atomic Radius
160.00 pm   
27
195.00 pm   
7

Covalent Radius
175.00 pm   
23
Not Available   

Van der Waals Radius
200.00 pm   
28
Not Available   

Atomic Weight
91.22 amu   
99+
227.00 amu   
25

Atomic Volume
14.10 cm3/mol   
36
22.54 cm3/mol   
11

Adjacent Atomic Numbers
  
  

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Yttrium
  
Radium
  

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Niobium
  
Thorium
  

Valence Electron Potential
80.00 (-eV)   
18
38.60 (-eV)   
99+

Lattice Constant
323.20 pm   
99+
567.00 pm   
8

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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