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Atomic Structure of Iridium and Technetium

Iridium
Technetium
Atomic Structure of Technetium and Iridium


Atomic Properties
Atomic Number
77   
39
43   
99+
Electron Configuration
[Xe] 4f14 5d7 6s2   
[Kr] 4d5 5s2   
Crystal Structure
Face Centered Cubic (FCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
FCC-Crystal-Structure-of-Iridium.jpg#100   
HCP-Crystal-Structure-of-Technetium.jpg#100   
Atom
  
  
Number of Protons
74   
99+
43   
99+
Number of Neutrons
110   
27
55   
99+
Number of Electrons
74   
99+
43   
99+
Radius of an Atom
  
  
Atomic Radius
136.00 pm   
99+
136.00 pm   
99+
Covalent Radius
141.00 pm   
99+
147.00 pm   
37
Van der Waals Radius
202.00 pm   
27
200.00 pm   
28
Atomic Weight
192.22 amu   
34
98.00 amu   
99+
Atomic Volume
9.53 cm3/mol   
99+
8.50 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Osmium
  
Molybdenum
  
Next Element
Platinum
  
Ruthenium
  
Valence Electron Potential
140.00 (-eV)   
5
180.00 (-eV)   
3
Lattice Constant
383.90 pm   
26
273.50 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.60   
5
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