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Atomic Structure of Cobalt and Erbium


Atomic Structure of Erbium and Cobalt


Atomic Properties

Atomic Number
22   
99+
68   
99+

Electron Configuration
[Ar] 3d2 4s2   
[Xe] 4f12 6s2   

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

Crystal Lattice
HCP-Crystal-Structure-of-Cobalt.jpg#100   
HCP-Crystal-Structure-of-Erbium.jpg#100   

Atom
  
  

Number of Protons
22   
99+
68   
99+

Number of Neutrons
26   
99+
99   
33

Number of Electrons
22   
99+
68   
99+

Radius of an Atom
  
  

Atomic Radius
147.00 pm   
34
176.00 pm   
18

Covalent Radius
160.00 pm   
30
189.00 pm   
19

Van der Waals Radius
200.00 pm   
28
Not Available   

Atomic Weight
47.87 amu   
99+
167.26 amu   
99+

Atomic Volume
10.64 cm3/mol   
99+
18.40 cm3/mol   
25

Adjacent Atomic Numbers
  
  

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Iron
  
Holmium
  

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Nickel
  
Thulium
  

Valence Electron Potential
95.20 (-eV)   
10
49.00 (-eV)   
29

Lattice Constant
295.08 pm   
99+
355.88 pm   
39

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

Lattice C/A Ratio
Not Available   
1.57   
17

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