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Atomic Structure of Tungsten and Protactinium

Tungsten
Protactinium
Atomic Structure of Protactinium and Tungsten


Atomic Properties
Atomic Number
74   
99+
91   
27
Electron Configuration
[Xe] 4f14 5d4 6s2   
[Rn] 5f2 6d1 7s2   
Crystal Structure
Body Centered Cubic (BCC)   
Tetragonal (TETR)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
TETR-Crystal-Structure-of-Protactinium.jpg#100   
Atom
  
  
Number of Protons
74   
99+
91   
27
Number of Neutrons
110   
27
122   
21
Number of Electrons
74   
99+
91   
27
Radius of an Atom
  
  
Atomic Radius
139.00 pm   
39
163.00 pm   
25
Covalent Radius
162.00 pm   
29
200.00 pm   
11
Van der Waals Radius
200.00 pm   
28
243.00 pm   
11
Atomic Weight
183.84 amu   
37
231.04 amu   
24
Atomic Volume
9.53 cm3/mol   
99+
15.00 cm3/mol   
34
Adjacent Atomic Numbers
  
  
Previous Element
Tantalum
  
Thorium
  
Next Element
Rhenium
  
Uranium
  
Valence Electron Potential
140.00 (-eV)   
5
92.00 (-eV)   
11
Lattice Constant
316.52 pm   
99+
392.50 pm   
23
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
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