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Atomic Structure of Tantalum and Thorium

Tantalum
Thorium
Atomic Structure of Thorium and Tantalum


Atomic Properties
Atomic Number
73   
99+
90   
28
Electron Configuration
[Xe] 4f14 5d3 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
73   
99+
90   
28
Number of Neutrons
108   
28
142   
15
Number of Electrons
73   
99+
90   
28
Radius of an Atom
  
  
Atomic Radius
146.00 pm   
35
179.80 pm   
15
Covalent Radius
170.00 pm   
25
206.00 pm   
7
Van der Waals Radius
200.00 pm   
28
237.00 pm   
15
Atomic Weight
180.95 amu   
38
232.04 amu   
23
Atomic Volume
10.90 cm3/mol   
99+
19.90 cm3/mol   
20
Adjacent Atomic Numbers
  
  
Previous Element
Hafnium
  
Actinium
  
Next Element
Tungsten
  
Protactinium
  
Valence Electron Potential
110.00 (-eV)   
7
59.30 (-eV)   
23
Lattice Constant
330.13 pm   
99+
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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