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Atomic Structure of Polonium and Neptunium


Atomic Structure of Neptunium and Polonium


Atomic Properties

Atomic Number
84   
32
93   
25

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

Crystal Structure
Monoclinic (MON)   
Orthorhombic (ORTH)   

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

Atom
  
  

Number of Protons
84   
32
93   
25

Number of Neutrons
125   
19
144   
14

Number of Electrons
84   
32
93   
25

Radius of an Atom
  
  

Atomic Radius
168.00 pm   
23
155.00 pm   
30

Covalent Radius
140.00 pm   
99+
190.00 pm   
18

Van der Waals Radius
197.00 pm   
29
221.00 pm   
22

Atomic Weight
209.00 amu   
28
237.00 amu   
22

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

Adjacent Atomic Numbers
  
  

Previous Element
Bismuth
  
Uranium
  

Next Element
Francium
  
Plutonium
  

Valence Electron Potential
Not Available   
96.00 (-eV)   
9

Lattice Constant
335.90 pm   
99+
666.30 pm   
3

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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