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Atomic Structure of Thulium and Gallium


Atomic Structure of Gallium and Thulium


Atomic Properties

Atomic Number
69   
99+
31   
99+

Electron Configuration
[Xe] 4f13 6s2   
[Ar] 3d10 4s2 4p1   

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

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

Atom
  
  

Number of Protons
69   
99+
31   
99+

Number of Neutrons
100   
32
39   
99+

Number of Electrons
69   
99+
31   
99+

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
135.00 pm   
99+

Covalent Radius
160.00 pm   
30
122.00 pm   
99+

Van der Waals Radius
Not Available   
187.00 pm   
32

Atomic Weight
168.93 amu   
99+
69.72 amu   
99+

Atomic Volume
18.10 cm3/mol   
28
11.80 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Erbium
  
Zinc
  

Next Element
Ytterbium
  
Rubidium
  

Valence Electron Potential
49.70 (-eV)   
28
69.70 (-eV)   
19

Lattice Constant
353.75 pm   
40
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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