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Atomic Structure of Iridium and Thorium

Iridium
Thorium
Atomic Structure of Thorium and Iridium


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