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Atomic Structure of Sodium and Protactinium


Atomic Structure of Protactinium and Sodium


Atomic Properties

Atomic Number
11   
99+
91   
27

Electron Configuration
[Ne] 3s1   
[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
11   
99+
91   
27

Number of Neutrons
12   
99+
122   
21

Number of Electrons
11   
99+
91   
27

Radius of an Atom
  
  

Atomic Radius
186.00 pm   
9
163.00 pm   
25

Covalent Radius
166.00 pm   
27
200.00 pm   
11

Van der Waals Radius
227.00 pm   
21
243.00 pm   
11

Atomic Weight
22.99 amu   
99+
231.04 amu   
24

Atomic Volume
23.70 cm3/mol   
10
15.00 cm3/mol   
34

Adjacent Atomic Numbers
  
  

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Beryllium
  
Thorium
  

Next Element
Magnesium
  
Uranium
  

Valence Electron Potential
14.10 (-eV)   
99+
92.00 (-eV)   
11

Lattice Constant
429.06 pm   
19
392.50 pm   
23

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

Lattice C/A Ratio
Not Available   
Not Available   

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