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Atomic Structure of Neptunium and 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
  

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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