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Atomic Structure of Iridium and Ruthenium


Atomic Structure of Ruthenium and Iridium


Atomic Properties

Atomic Number
77   
39
44   
99+

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

Crystal Structure
Face Centered Cubic (FCC)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
FCC-Crystal-Structure-of-Iridium.jpg#100   
rystal-Structure-of-Ruthenium.jpg#100   

Atom
  
  

Number of Protons
74   
99+
44   
99+

Number of Neutrons
110   
27
57   
99+

Number of Electrons
74   
99+
44   
99+

Radius of an Atom
  
  

Atomic Radius
136.00 pm   
99+
134.00 pm   
99+

Covalent Radius
141.00 pm   
99+
146.00 pm   
38

Van der Waals Radius
202.00 pm   
27
200.00 pm   
28

Atomic Weight
192.22 amu   
34
101.07 amu   
99+

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

Adjacent Atomic Numbers
  
  

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Osmium
  
Technetium
  

Next Element
Platinum
  
Rhodium
  

Valence Electron Potential
140.00 (-eV)   
5
64.00 (-eV)   
22

Lattice Constant
383.90 pm   
26
270.59 pm   
99+

Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
Not Available   
1.58   
11

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