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Atomic Structure of Thulium and Polonium


Atomic Structure of Polonium and Thulium


Atomic Properties

Atomic Number
69   
99+
84   
32

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

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

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

Atom
  
  

Number of Protons
69   
99+
84   
32

Number of Neutrons
100   
32
125   
19

Number of Electrons
69   
99+
84   
32

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
168.00 pm   
23

Covalent Radius
160.00 pm   
30
140.00 pm   
99+

Van der Waals Radius
Not Available   
197.00 pm   
29

Atomic Weight
168.93 amu   
99+
209.00 amu   
28

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

Adjacent Atomic Numbers
  
  

Previous Element
Erbium
  
Bismuth
  

Next Element
Ytterbium
  
Francium
  

Valence Electron Potential
49.70 (-eV)   
28
Not Available   

Lattice Constant
353.75 pm   
40
335.90 pm   
99+

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

Lattice C/A Ratio
1.57   
17
Not Available   

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