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Atomic Structure of Protactinium and Bohrium

Protactinium
Bohrium
Atomic Structure of Bohrium and Protactinium


Atomic
Atomic Number
91  
27
107  
11
Electron Configuration
[Rn] 5f2 6d1 7s2  
[Rn] 5f14 6d5 7s2  
Crystal Structure
Tetragonal (TETR)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
TETR-Crystal-Structure-of-Protactinium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
91  
27
107  
11
Number of Neutrons
122  
22
155  
9
Number of Electrons
91  
27
107  
11
Radius of an Atom
  
  
Atomic Radius
163.00 pm  
27
128.00 pm  
99+
Covalent Radius
200.00 pm  
11
141.00 pm  
99+
Van der Waals Radius
243.00 pm  
15
0.00 pm  
99+
Atomic Weight
231.04 amu  
24
270.00 amu  
8
Atomic Volume
15.00 cm3/mol  
99+
23.70 cm3/mol  
14
Adjacent Atomic Numbers
  
  
Previous Element
Thorium
  
Seaborgium
  
Next Element
Uranium
  
Hassium
  
Valence Electron Potential
92.00 (-eV)  
11
27.20 (-eV)  
99+
Lattice Constant
392.50 pm  
26
-  
Lattice Angles
π/2, π/2, π/2  
-  
Lattice C/A Ratio
1.58  
36
1.57  
99+
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