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Atomic Structure of Iridium and Cesium


Atomic Structure of Cesium and Iridium


Atomic Properties

Atomic Number
77   
39
55   
99+

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

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

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

Atom
  
  

Number of Protons
74   
99+
55   
99+

Number of Neutrons
110   
27
78   
99+

Number of Electrons
74   
99+
55   
99+

Radius of an Atom
  
  

Atomic Radius
136.00 pm   
99+
265.00 pm   
1

Covalent Radius
141.00 pm   
99+
244.00 pm   
2

Van der Waals Radius
202.00 pm   
27
343.00 pm   
2

Atomic Weight
192.22 amu   
34
132.91 amu   
99+

Atomic Volume
9.53 cm3/mol   
99+
71.07 cm3/mol   
1

Adjacent Atomic Numbers
  
  

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Osmium
  
Tin
  

Next Element
Platinum
  
Barium
  

Valence Electron Potential
140.00 (-eV)   
5
8.62 (-eV)   
99+

Lattice Constant
383.90 pm   
26
614.10 pm   
5

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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