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Atomic Structure of Erbium and Gadolinium


Atomic Structure of Gadolinium and Erbium


Atomic Properties

Atomic Number
68   
99+
64   
99+

Electron Configuration
[Xe] 4f12 6s2   
[Xe] 4f7 5d1 6s2   

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

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

Atom
  
  

Number of Protons
68   
99+
64   
99+

Number of Neutrons
99   
33
93   
37

Number of Electrons
68   
99+
64   
99+

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
180.00 pm   
14

Covalent Radius
189.00 pm   
19
196.00 pm   
14

Van der Waals Radius
Not Available   
237.00 pm   
15

Atomic Weight
167.26 amu   
99+
47.87 amu   
99+

Atomic Volume
18.40 cm3/mol   
25
19.90 cm3/mol   
20

Adjacent Atomic Numbers
  
  

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Holmium
  
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Next Element
Thulium
  
Terbium
  

Valence Electron Potential
49.00 (-eV)   
29
46.10 (-eV)   
34

Lattice Constant
355.88 pm   
39
363.60 pm   
32

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   
9

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