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Atomic Structure of Barium and Thorium

Barium
Thorium
Atomic Structure of Thorium and Barium


Atomic Properties
Atomic Number
56   
99+
90   
28
Electron Configuration
[Xe] 6s2   
[Rn] 6d2 7s2   
Crystal Structure
Body Centered Cubic (BCC)   
Face Centered Cubic (FCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
FCC-Crystal-Structure-of-Thorium.jpg#100   
Atom
  
  
Number of Protons
56   
99+
90   
28
Number of Neutrons
81   
99+
142   
15
Number of Electrons
56   
99+
90   
28
Radius of an Atom
  
  
Atomic Radius
222.00 pm   
4
179.80 pm   
15
Covalent Radius
215.00 pm   
5
206.00 pm   
7
Van der Waals Radius
268.00 pm   
6
237.00 pm   
15
Atomic Weight
137.33 amu   
99+
232.04 amu   
23
Atomic Volume
39.24 cm3/mol   
5
19.90 cm3/mol   
20
Adjacent Atomic Numbers
  
  
Previous Element
Cesium
  
Actinium
  
Next Element
Lanthanum
  
Protactinium
  
Valence Electron Potential
21.30 (-eV)   
99+
59.30 (-eV)   
23
Lattice Constant
502.80 pm   
15
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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