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Atomic Structure of Erbium and Lutetium


Atomic Structure of Lutetium and Erbium


Atomic Properties

Atomic Number
68   
99+
71   
99+

Electron Configuration
[Xe] 4f12 6s2   
[Xe] 6s2 4f14 5d1   

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

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

Atom
  
  

Number of Protons
68   
99+
71   
99+

Number of Neutrons
99   
33
104   
30

Number of Electrons
68   
99+
71   
99+

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
174.00 pm   
20

Covalent Radius
189.00 pm   
19
187.00 pm   
20

Van der Waals Radius
Not Available   
221.00 pm   
22

Atomic Weight
167.26 amu   
99+
174.97 amu   
40

Atomic Volume
18.40 cm3/mol   
25
17.78 cm3/mol   
30

Adjacent Atomic Numbers
  
  

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Holmium
  
Ytterbium
  

Next Element
Thulium
  
Hafnium
  

Valence Electron Potential
49.00 (-eV)   
29
50.90 (-eV)   
26

Lattice Constant
355.88 pm   
39
350.31 pm   
99+

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

Lattice C/A Ratio
1.57   
17
1.59   
10

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