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Atomic Structure of Iridium and Lutetium


Atomic Structure of Lutetium and Iridium


Atomic Properties

Atomic Number
77   
39
71   
99+

Electron Configuration
[Xe] 4f14 5d7 6s2   
[Xe] 6s2 4f14 5d1   

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

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

Atom
  
  

Number of Protons
74   
99+
71   
99+

Number of Neutrons
110   
27
104   
30

Number of Electrons
74   
99+
71   
99+

Radius of an Atom
  
  

Atomic Radius
136.00 pm   
99+
174.00 pm   
20

Covalent Radius
141.00 pm   
99+
187.00 pm   
20

Van der Waals Radius
202.00 pm   
27
221.00 pm   
22

Atomic Weight
192.22 amu   
34
174.97 amu   
40

Atomic Volume
9.53 cm3/mol   
99+
17.78 cm3/mol   
30

Adjacent Atomic Numbers
  
  

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Osmium
  
Ytterbium
  

Next Element
Platinum
  
Hafnium
  

Valence Electron Potential
140.00 (-eV)   
5
50.90 (-eV)   
26

Lattice Constant
383.90 pm   
26
350.31 pm   
99+

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

Lattice C/A Ratio
Not Available   
1.59   
10

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