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Atomic Structure of Platinum and Iridium


Atomic Structure of Iridium and Platinum


Atomic Properties

Atomic Number
78   
38
77   
39

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

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

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

Atom
  
  

Number of Protons
78   
38
74   
99+

Number of Neutrons
117   
24
110   
27

Number of Electrons
78   
38
74   
99+

Radius of an Atom
  
  

Atomic Radius
139.00 pm   
39
136.00 pm   
99+

Covalent Radius
136.00 pm   
99+
141.00 pm   
99+

Van der Waals Radius
175.00 pm   
36
202.00 pm   
27

Atomic Weight
47.87 amu   
99+
192.22 amu   
34

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

Adjacent Atomic Numbers
  
  

Previous Element
Iridium
  
Osmium
  

Next Element
Gold
  
Platinum
  

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

Lattice Constant
392.42 pm   
24
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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