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Atomic Structure of Barium and Iridium

Barium
Iridium
Atomic Structure of Iridium and Barium


Atomic Properties
Atomic Number
56   
99+
77   
39
Electron Configuration
[Xe] 6s2   
[Xe] 4f14 5d7 6s2   
Crystal Structure
Body Centered Cubic (BCC)   
Face Centered Cubic (FCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
FCC-Crystal-Structure-of-Iridium.jpg#100   
Atom
  
  
Number of Protons
56   
99+
74   
99+
Number of Neutrons
81   
99+
110   
27
Number of Electrons
56   
99+
74   
99+
Radius of an Atom
  
  
Atomic Radius
222.00 pm   
4
136.00 pm   
99+
Covalent Radius
215.00 pm   
5
141.00 pm   
99+
Van der Waals Radius
268.00 pm   
6
202.00 pm   
27
Atomic Weight
137.33 amu   
99+
192.22 amu   
34
Atomic Volume
39.24 cm3/mol   
5
9.53 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Cesium
  
Osmium
  
Next Element
Lanthanum
  
Platinum
  
Valence Electron Potential
21.30 (-eV)   
99+
140.00 (-eV)   
5
Lattice Constant
502.80 pm   
15
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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