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Atomic Structure of Fermium and Protactinium


Atomic Structure of Protactinium and Fermium


Atomic Properties

Atomic Number
100   
18
91   
27

Electron Configuration
[Rn] 5f12 7s2   
[Rn] 5f2 6d1 7s2   

Crystal Structure
Not Known   
Tetragonal (TETR)   

Crystal Lattice
Unknown-Crystal-Structure-of-Fermium.jpg#100   
TETR-Crystal-Structure-of-Protactinium.jpg#100   

Atom
  
  

Number of Protons
100   
18
91   
27

Number of Neutrons
157   
7
122   
21

Number of Electrons
100   
18
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
245.00 pm   
9
243.00 pm   
11

Atomic Weight
257.00 amu   
15
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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