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Atomic Structure of Polonium and Technetium


Atomic Structure of Technetium and Polonium


Atomic

Atomic Number
84  
32
43  
99+

Electron Configuration
[Xe] 4f14 5d10 6s2 6p4  
[Kr] 4d5 5s2  

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

Crystal Lattice
MON-Crystal-Structure-of-Polonium.jpg#100  
HCP-Crystal-Structure-of-Technetium.jpg#100  

Atom
  
  

Number of Protons
84  
32
43  
99+

Number of Neutrons
125  
20
55  
99+

Number of Electrons
84  
32
43  
99+

Radius of an Atom
  
  

Atomic Radius
168.00 pm  
25
136.00 pm  
99+

Covalent Radius
140.00 pm  
99+
147.00 pm  
39

Van der Waals Radius
197.00 pm  
36
200.00 pm  
35

Atomic Weight
209.00 amu  
28
98.00 amu  
99+

Atomic Volume
22.23 cm3/mol  
22
8.50 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Bismuth
  

Next Element
Francium
  
Ruthenium
  

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

Lattice Constant
335.90 pm  
99+
273.50 pm  
99+

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

Lattice C/A Ratio
1.46  
99+
1.60  
21

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