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Atomic Structure of Thorium and Iridium

Thorium
Iridium
Atomic Structure of Iridium and Thorium


Atomic Properties
Atomic Number
90   
28
77   
39
Electron Configuration
[Rn] 6d2 7s2   
[Xe] 4f14 5d7 6s2   
Crystal Structure
Face Centered Cubic (FCC)   
Face Centered Cubic (FCC)   
Crystal Lattice
FCC-Crystal-Structure-of-Thorium.jpg#100   
FCC-Crystal-Structure-of-Iridium.jpg#100   
Atom
  
  
Number of Protons
90   
28
74   
99+
Number of Neutrons
142   
15
110   
27
Number of Electrons
90   
28
74   
99+
Radius of an Atom
  
  
Atomic Radius
179.80 pm   
15
136.00 pm   
99+
Covalent Radius
206.00 pm   
7
141.00 pm   
99+
Van der Waals Radius
237.00 pm   
15
202.00 pm   
27
Atomic Weight
232.04 amu   
23
192.22 amu   
34
Atomic Volume
19.90 cm3/mol   
20
9.53 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Actinium
  
Osmium
  
Next Element
Protactinium
  
Platinum
  
Valence Electron Potential
59.30 (-eV)   
23
140.00 (-eV)   
5
Lattice Constant
508.42 pm   
14
383.90 pm   
26
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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