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Atomic Structure of Technetium and Thallium


Atomic Structure of Thallium and Technetium


Atomic

Atomic Number
43  
99+
81  
35

Electron Configuration
[Kr] 4d5 5s2  
[Xe] 4f14 5d10 6s2 6p1  

Crystal Structure
Hexagonal Close Packed (HCP)  
Hexagonal Close Packed (HCP)  

Crystal Lattice
HCP-Crystal-Structure-of-Technetium.jpg#100  
BCC-Crystal-Structure-.jpg#100  

Atom
  
  

Number of Protons
43  
99+
81  
35

Number of Neutrons
55  
99+
123  
21

Number of Electrons
43  
99+
81  
35

Radius of an Atom
  
  

Atomic Radius
136.00 pm  
99+
170.00 pm  
24

Covalent Radius
147.00 pm  
39
145.00 pm  
99+

Van der Waals Radius
200.00 pm  
35
196.00 pm  
37

Atomic Weight
98.00 amu  
99+
204.38 amu  
31

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

Adjacent Atomic Numbers
  
  

Previous Element
Mercury
  

Next Element
Ruthenium
  
Lead
  

Valence Electron Potential
180.00 (-eV)  
3
9.60 (-eV)  
99+

Lattice Constant
273.50 pm  
99+
345.66 pm  
99+

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

Lattice C/A Ratio
1.60  
21
1.60  
23

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