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Atomic Structure of Iridium and Beryllium

Iridium
Beryllium
Atomic Structure of Beryllium and Iridium


Atomic Properties
Atomic Number
77   
39
4   
99+
Electron Configuration
[Xe] 4f14 5d7 6s2   
[He] 2s2   
Crystal Structure
Face Centered Cubic (FCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
FCC-Crystal-Structure-of-Iridium.jpg#100   
HCP-Crystal-Structure-of-Beryllium.jpg#100   
Atom
  
  
Number of Protons
74   
99+
4   
99+
Number of Neutrons
110   
27
5   
99+
Number of Electrons
74   
99+
4   
99+
Radius of an Atom
  
  
Atomic Radius
136.00 pm   
99+
112.00 pm   
99+
Covalent Radius
141.00 pm   
99+
96.00 pm   
99+
Van der Waals Radius
202.00 pm   
27
153.00 pm   
99+
Atomic Weight
192.22 amu   
34
9.01 amu   
99+
Atomic Volume
9.53 cm3/mol   
99+
5.00 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Osmium
  
Lithium
  
Next Element
Platinum
  
Sodium
  
Valence Electron Potential
140.00 (-eV)   
5
82.00 (-eV)   
15
Lattice Constant
383.90 pm   
26
228.58 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
1.57   
18
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