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Atomic Structure of Technetium and Iridium


Atomic Structure of Iridium and Technetium


Atomic

Atomic Number
43  
99+
77  
39

Electron Configuration
[Kr] 4d5 5s2  
[Xe] 4f14 5d7 6s2  

Crystal Structure
Hexagonal Close Packed (HCP)  
Face Centered Cubic (FCC)  

Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100  
FCC-Crystal-Structure-of-Iridium.jpg#100  

Atom
  
  

Number of Protons
43  
99+
74  
99+

Number of Neutrons
55  
99+
110  
28

Number of Electrons
43  
99+
74  
99+

Radius of an Atom
  
  

Atomic Radius
136.00 pm  
99+
136.00 pm  
99+

Covalent Radius
147.00 pm  
39
141.00 pm  
99+

Van der Waals Radius
200.00 pm  
35
202.00 pm  
34

Atomic Weight
98.00 amu  
99+
192.22 amu  
34

Atomic Volume
8.50 cm3/mol  
99+
9.53 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Osmium
  

Next Element
Ruthenium
  
Platinum
  

Valence Electron Potential
180.00 (-eV)  
3
140.00 (-eV)  
5

Lattice Constant
273.50 pm  
99+
383.90 pm  
29

Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, π/2  

Lattice C/A Ratio
1.60  
21
1.58  
35

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