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Atomic Structure of Erbium and Gallium


Atomic Structure of Gallium and Erbium


Atomic Properties

Atomic Number
68   
99+
31   
99+

Electron Configuration
[Xe] 4f12 6s2   
[Ar] 3d10 4s2 4p1   

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

Crystal Lattice
HCP-Crystal-Structure-of-Erbium.jpg#100   
ORTH-Crystal-Structure-of-Gallium.jpg#100   

Atom
  
  

Number of Protons
68   
99+
31   
99+

Number of Neutrons
99   
33
39   
99+

Number of Electrons
68   
99+
31   
99+

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
135.00 pm   
99+

Covalent Radius
189.00 pm   
19
122.00 pm   
99+

Van der Waals Radius
Not Available   
187.00 pm   
32

Atomic Weight
167.26 amu   
99+
69.72 amu   
99+

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

Adjacent Atomic Numbers
  
  

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Thulium
  
Rubidium
  

Valence Electron Potential
49.00 (-eV)   
29
69.70 (-eV)   
19

Lattice Constant
355.88 pm   
39
451.97 pm   
18

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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