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Atomic Structure of Gallium and Samarium


Atomic Structure of Samarium and Gallium


Atomic Properties

Atomic Number
31   
99+
62   
99+

Electron Configuration
[Ar] 3d10 4s2 4p1   
[Xe] 4f6 6s2   

Crystal Structure
Orthorhombic (ORTH)   
Rhombohedral (RHO)   

Crystal Lattice
ORTH-Crystal-Structure-of-Gallium.jpg#100   
RHO-Crystal-Structure-of-Samarium.jpg#100   

Atom
  
  

Number of Protons
31   
99+
62   
99+

Number of Neutrons
39   
99+
88   
39

Number of Electrons
31   
99+
62   
99+

Radius of an Atom
  
  

Atomic Radius
135.00 pm   
99+
180.00 pm   
14

Covalent Radius
122.00 pm   
99+
198.00 pm   
13

Van der Waals Radius
187.00 pm   
32
229.00 pm   
20

Atomic Weight
69.72 amu   
99+
150.36 amu   
99+

Atomic Volume
11.80 cm3/mol   
99+
19.95 cm3/mol   
19

Adjacent Atomic Numbers
  
  

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Rubidium
  
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Valence Electron Potential
69.70 (-eV)   
19
44.80 (-eV)   
37

Lattice Constant
451.97 pm   
18
362.10 pm   
33

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

Lattice C/A Ratio
Not Available   
Not Available   

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