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Atomic Structure of Lutetium and Erbium


Atomic Structure of Erbium and Lutetium


Atomic Properties

Atomic Number
71   
99+
68   
99+

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

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

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

Atom
  
  

Number of Protons
71   
99+
68   
99+

Number of Neutrons
104   
30
99   
33

Number of Electrons
71   
99+
68   
99+

Radius of an Atom
  
  

Atomic Radius
174.00 pm   
20
176.00 pm   
18

Covalent Radius
187.00 pm   
20
189.00 pm   
19

Van der Waals Radius
221.00 pm   
22
Not Available   

Atomic Weight
174.97 amu   
40
167.26 amu   
99+

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

Adjacent Atomic Numbers
  
  

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Hafnium
  
Thulium
  

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

Lattice Constant
350.31 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
1.59   
10
1.57   
17

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