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Atomic Structure of Polonium and Thulium


Atomic Structure of Thulium and Polonium


Atomic Properties

Atomic Number
84   
32
69   
99+

Electron Configuration
[Xe] 4f14 5d10 6s2 6p4   
[Xe] 4f13 6s2   

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

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

Atom
  
  

Number of Protons
84   
32
69   
99+

Number of Neutrons
125   
19
100   
32

Number of Electrons
84   
32
69   
99+

Radius of an Atom
  
  

Atomic Radius
168.00 pm   
23
176.00 pm   
18

Covalent Radius
140.00 pm   
99+
160.00 pm   
30

Van der Waals Radius
197.00 pm   
29
Not Available   

Atomic Weight
209.00 amu   
28
168.93 amu   
99+

Atomic Volume
22.23 cm3/mol   
13
18.10 cm3/mol   
28

Adjacent Atomic Numbers
  
  

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Bismuth
  
Erbium
  

Next Element
Francium
  
Ytterbium
  

Valence Electron Potential
Not Available   
49.70 (-eV)   
28

Lattice Constant
335.90 pm   
99+
353.75 pm   
40

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

Lattice C/A Ratio
Not Available   
1.57   
17

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