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Atomic Structure of Thallium and Iridium

Thallium
Iridium
Atomic Structure of Iridium and Thallium


Atomic Properties
Atomic Number
81   
35
77   
39
Electron Configuration
[Xe] 4f14 5d10 6s2 6p1   
[Xe] 4f14 5d7 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
FCC-Crystal-Structure-of-Iridium.jpg#100   
Atom
  
  
Number of Protons
81   
35
74   
99+
Number of Neutrons
123   
20
110   
27
Number of Electrons
81   
35
74   
99+
Radius of an Atom
  
  
Atomic Radius
170.00 pm   
22
136.00 pm   
99+
Covalent Radius
145.00 pm   
39
141.00 pm   
99+
Van der Waals Radius
196.00 pm   
30
202.00 pm   
27
Atomic Weight
204.38 amu   
31
192.22 amu   
34
Atomic Volume
17.20 cm3/mol   
31
9.53 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Mercury
  
Osmium
  
Next Element
Lead
  
Platinum
  
Valence Electron Potential
9.60 (-eV)   
99+
140.00 (-eV)   
5
Lattice Constant
345.66 pm   
99+
383.90 pm   
26
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.60   
6
Not Available   
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