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Atomic Structure of Protactinium and Vanadium

Protactinium
Vanadium
Atomic Structure of Vanadium and Protactinium


Atomic
Atomic Number
91  
27
23  
99+
Electron Configuration
[Rn] 5f2 6d1 7s2  
[Ar] 3d3 4s2  
Crystal Structure
Tetragonal (TETR)  
Body Centered Cubic (BCC)  
Crystal Lattice
TETR-Crystal-Structure-of-Protactinium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
91  
27
23  
99+
Number of Neutrons
122  
22
28  
99+
Number of Electrons
91  
27
23  
99+
Radius of an Atom
  
  
Atomic Radius
163.00 pm  
27
134.00 pm  
99+
Covalent Radius
200.00 pm  
11
153.00 pm  
35
Van der Waals Radius
243.00 pm  
15
200.00 pm  
35
Atomic Weight
231.04 amu  
24
50.94 amu  
99+
Atomic Volume
15.00 cm3/mol  
99+
8.78 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Thorium
  
Titanium
  
Next Element
Uranium
  
Chromium
  
Valence Electron Potential
92.00 (-eV)  
11
120.00 (-eV)  
6
Lattice Constant
392.50 pm  
26
303.00 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.58  
36
1.70  
9
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