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Atomic Structure of Neptunium and Polonium


Atomic Structure of Polonium and Neptunium


Atomic Properties

Atomic Number
93   
25
84   
32

Electron Configuration
[Rn] 5f4 6d1 7s2   
[Xe] 4f14 5d10 6s2 6p4   

Crystal Structure
Orthorhombic (ORTH)   
Monoclinic (MON)   

Crystal Lattice
ORTH-Crystal-Structure-of-Neptunium.jpg#100   
MON-Crystal-Structure-of-Polonium.jpg#100   

Atom
  
  

Number of Protons
93   
25
84   
32

Number of Neutrons
144   
14
125   
19

Number of Electrons
93   
25
84   
32

Radius of an Atom
  
  

Atomic Radius
155.00 pm   
30
168.00 pm   
23

Covalent Radius
190.00 pm   
18
140.00 pm   
99+

Van der Waals Radius
221.00 pm   
22
197.00 pm   
29

Atomic Weight
237.00 amu   
22
209.00 amu   
28

Atomic Volume
11.62 cm3/mol   
99+
22.23 cm3/mol   
13

Adjacent Atomic Numbers
  
  

Previous Element
Uranium
  
Bismuth
  

Next Element
Plutonium
  
Francium
  

Valence Electron Potential
96.00 (-eV)   
9
Not Available   

Lattice Constant
666.30 pm   
3
335.90 pm   
99+

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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