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Atomic Structure of Roentgenium and 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
Thorium
  

Next Element
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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