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Atomic Structure of Neptunium and Thorium

Neptunium
Thorium
Atomic Structure of Thorium and Neptunium


Atomic Properties
Atomic Number
93   
25
90   
28
Electron Configuration
[Rn] 5f4 6d1 7s2   
[Rn] 6d2 7s2   
Crystal Structure
Orthorhombic (ORTH)   
Face Centered Cubic (FCC)   
Crystal Lattice
ORTH-Crystal-Structure-of-Neptunium.jpg#100   
FCC-Crystal-Structure-of-Thorium.jpg#100   
Atom
  
  
Number of Protons
93   
25
90   
28
Number of Neutrons
144   
14
142   
15
Number of Electrons
93   
25
90   
28
Radius of an Atom
  
  
Atomic Radius
155.00 pm   
30
179.80 pm   
15
Covalent Radius
190.00 pm   
18
206.00 pm   
7
Van der Waals Radius
221.00 pm   
22
237.00 pm   
15
Atomic Weight
237.00 amu   
22
232.04 amu   
23
Atomic Volume
11.62 cm3/mol   
99+
19.90 cm3/mol   
20
Adjacent Atomic Numbers
  
  
Previous Element
Uranium
  
Actinium
  
Next Element
Plutonium
  
Protactinium
  
Valence Electron Potential
96.00 (-eV)   
9
59.30 (-eV)   
23
Lattice Constant
666.30 pm   
3
508.42 pm   
14
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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