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Atomic Structure of Protactinium and Cadmium

Protactinium
Cadmium
Atomic Structure of Cadmium and Protactinium


Atomic Properties
Atomic Number
91   
27
48   
99+
Electron Configuration
[Rn] 5f2 6d1 7s2   
[Kr] 4d10 5s2   
Crystal Structure
Tetragonal (TETR)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
TETR-Crystal-Structure-of-Protactinium.jpg#100   
HCP-Crystal-Structure-of-Cadmium.jpg#100   
Atom
  
  
Number of Protons
91   
27
48   
99+
Number of Neutrons
122   
21
64   
99+
Number of Electrons
91   
27
48   
99+
Radius of an Atom
  
  
Atomic Radius
163.00 pm   
25
151.00 pm   
32
Covalent Radius
200.00 pm   
11
144.00 pm   
40
Van der Waals Radius
243.00 pm   
11
158.00 pm   
99+
Atomic Weight
231.04 amu   
24
112.41 amu   
99+
Atomic Volume
15.00 cm3/mol   
34
13.10 cm3/mol   
39
Adjacent Atomic Numbers
  
  
Previous Element
Thorium
  
Silver
  
Next Element
Uranium
  
Indium
  
Valence Electron Potential
92.00 (-eV)   
11
30.00 (-eV)   
99+
Lattice Constant
392.50 pm   
23
297.94 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.89   
1
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