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Atomic Structure of Protactinium and Einsteinium


Atomic Structure of Einsteinium and Protactinium


Atomic Properties

Atomic Number
91   
27
99   
19

Electron Configuration
[Rn] 5f2 6d1 7s2   
[Rn] 5f11 7s2   

Crystal Structure
Tetragonal (TETR)   
Face Centered Cubic (FCC)   

Crystal Lattice
TETR-Crystal-Structure-of-Protactinium.jpg#100   
FCC-Crystal-Structure-of-Einsteinium.jpg#100   

Atom
  
  

Number of Protons
91   
27
99   
19

Number of Neutrons
122   
21
153   
9

Number of Electrons
91   
27
99   
19

Radius of an Atom
  
  

Atomic Radius
163.00 pm   
25
186.00 pm   
9

Covalent Radius
200.00 pm   
11
Not Available   

Van der Waals Radius
243.00 pm   
11
Not Available   

Atomic Weight
231.04 amu   
24
252.00 amu   
16

Atomic Volume
15.00 cm3/mol   
34
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Thorium
  

Next Element
Uranium
  
Fermium
  

Valence Electron Potential
92.00 (-eV)   
11
Not Available   

Lattice Constant
392.50 pm   
23
Not Available   

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

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