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Atomic Structure of Erbium and Polonium


Atomic Structure of Polonium and Erbium


Atomic Properties

Atomic Number
68   
99+
84   
32

Electron Configuration
[Xe] 4f12 6s2   
[Xe] 4f14 5d10 6s2 6p4   

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

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

Atom
  
  

Number of Protons
68   
99+
84   
32

Number of Neutrons
99   
33
125   
19

Number of Electrons
68   
99+
84   
32

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
168.00 pm   
23

Covalent Radius
189.00 pm   
19
140.00 pm   
99+

Van der Waals Radius
Not Available   
197.00 pm   
29

Atomic Weight
167.26 amu   
99+
209.00 amu   
28

Atomic Volume
18.40 cm3/mol   
25
22.23 cm3/mol   
13

Adjacent Atomic Numbers
  
  

Previous Element
Holmium
  
Bismuth
  

Next Element
Thulium
  
Francium
  

Valence Electron Potential
49.00 (-eV)   
29
Not Available   

Lattice Constant
355.88 pm   
39
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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