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Atomic Structure of Tungsten and 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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