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Atomic Structure of Rhenium and Protactinium


Atomic Structure of Protactinium and Rhenium


Atomic Properties

Atomic Number
75   
99+
91   
27

Electron Configuration
[Xe] 4f14 5d5 6s2   
[Rn] 5f2 6d1 7s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Tetragonal (TETR)   

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
TETR-Crystal-Structure-of-Protactinium.jpg#100   

Atom
  
  

Number of Protons
75   
40
91   
27

Number of Neutrons
111   
26
122   
21

Number of Electrons
75   
40
91   
27

Radius of an Atom
  
  

Atomic Radius
137.00 pm   
40
163.00 pm   
25

Covalent Radius
151.00 pm   
34
200.00 pm   
11

Van der Waals Radius
200.00 pm   
28
243.00 pm   
11

Atomic Weight
186.21 amu   
36
231.04 amu   
24

Atomic Volume
8.85 cm3/mol   
99+
15.00 cm3/mol   
34

Adjacent Atomic Numbers
  
  

Previous Element
Tungsten
  
Thorium
  

Next Element
Osmium
  
Uranium
  

Valence Electron Potential
180.00 (-eV)   
3
92.00 (-eV)   
11

Lattice Constant
276.10 pm   
99+
392.50 pm   
23

Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   

Lattice C/A Ratio
1.62   
3
Not Available   

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