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Atomic Structure of Francium and Protactinium

Francium
Protactinium
Atomic Structure of Protactinium and Francium


Atomic Properties
Atomic Number
87   
31
91   
27
Electron Configuration
[Rn] 7s1   
[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
87   
31
91   
27
Number of Neutrons
136   
17
122   
21
Number of Electrons
87   
31
91   
27
Radius of an Atom
  
  
Atomic Radius
Not Available   
163.00 pm   
25
Covalent Radius
260.00 pm   
1
200.00 pm   
11
Van der Waals Radius
348.00 pm   
1
243.00 pm   
11
Atomic Weight
223.00 amu   
27
231.04 amu   
24
Atomic Volume
Not Available   
15.00 cm3/mol   
34
Adjacent Atomic Numbers
  
  
Previous Element
Polonium
  
Thorium
  
Next Element
Radium
  
Uranium
  
Valence Electron Potential
8.00 (-eV)   
99+
92.00 (-eV)   
11
Lattice Constant
Not Available   
392.50 pm   
23
Lattice Angles
NA   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
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