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Atomic Structure of Manganese and Protactinium

Manganese
Protactinium
Atomic Structure of Protactinium and Manganese


Atomic Properties
Atomic Number
25   
99+
91   
27
Electron Configuration
[Ar] 3d5 4s2   
[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
25   
99+
91   
27
Number of Neutrons
30   
99+
122   
21
Number of Electrons
25   
99+
91   
27
Radius of an Atom
  
  
Atomic Radius
127.00 pm   
99+
163.00 pm   
25
Covalent Radius
139.00 pm   
99+
200.00 pm   
11
Van der Waals Radius
200.00 pm   
28
243.00 pm   
11
Atomic Weight
54.94 amu   
99+
231.04 amu   
24
Atomic Volume
1.39 cm3/mol   
99+
15.00 cm3/mol   
34
Adjacent Atomic Numbers
  
  
Previous Element
Chromium
  
Thorium
  
Next Element
Iron
  
Uranium
  
Valence Electron Potential
220.00 (-eV)   
2
92.00 (-eV)   
11
Lattice Constant
891.25 pm   
1
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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