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Atomic Structure of Iridium and Platinum


Atomic Structure of Platinum and Iridium


Atomic Properties

Atomic Number
77   
39
78   
38

Electron Configuration
[Xe] 4f14 5d7 6s2   
[Xe] 4f14 5d9 6s1   

Crystal Structure
Face Centered Cubic (FCC)   
Face Centered Cubic (FCC)   

Crystal Lattice
FCC-Crystal-Structure-of-Iridium.jpg#100   
FCC-Crystal-Structure-of-Platinum.jpg#100   

Atom
  
  

Number of Protons
74   
99+
78   
38

Number of Neutrons
110   
27
117   
24

Number of Electrons
74   
99+
78   
38

Radius of an Atom
  
  

Atomic Radius
136.00 pm   
99+
139.00 pm   
39

Covalent Radius
141.00 pm   
99+
136.00 pm   
99+

Van der Waals Radius
202.00 pm   
27
175.00 pm   
36

Atomic Weight
192.22 amu   
34
47.87 amu   
99+

Atomic Volume
9.53 cm3/mol   
99+
9.09 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Osmium
  
Iridium
  

Next Element
Platinum
  
Gold
  

Valence Electron Potential
140.00 (-eV)   
5
392.42 (-eV)   
1

Lattice Constant
383.90 pm   
26
392.42 pm   
24

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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