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Atomic Structure of Roentgenium and Protactinium

Roentgenium
Protactinium
Atomic Structure of Protactinium and Roentgenium


Atomic Properties
Atomic Number
111   
7
91   
27
Electron Configuration
[Rn] 5f14 6d9 7s2   
[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
111   
7
91   
27
Number of Neutrons
161   
3
122   
21
Number of Electrons
111   
7
91   
27
Radius of an Atom
  
  
Atomic Radius
Not Available   
163.00 pm   
25
Covalent Radius
Not Available   
200.00 pm   
11
Van der Waals Radius
Not Available   
243.00 pm   
11
Atomic Weight
281.00 amu   
6
231.04 amu   
24
Atomic Volume
Not Available   
15.00 cm3/mol   
34
Adjacent Atomic Numbers
  
  
Previous Element
Darmstadtium
  
Thorium
  
Next Element
Copernicium
  
Uranium
  
Valence Electron Potential
Not Available   
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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