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Atomic Structure of Gallium and Technetium

Gallium
Technetium
Atomic Structure of Technetium and Gallium


Atomic Properties
Atomic Number
31   
99+
43   
99+
Electron Configuration
[Ar] 3d10 4s2 4p1   
[Kr] 4d5 5s2   
Crystal Structure
Orthorhombic (ORTH)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
ORTH-Crystal-Structure-of-Gallium.jpg#100   
HCP-Crystal-Structure-of-Technetium.jpg#100   
Atom
  
  
Number of Protons
31   
99+
43   
99+
Number of Neutrons
39   
99+
55   
99+
Number of Electrons
31   
99+
43   
99+
Radius of an Atom
  
  
Atomic Radius
135.00 pm   
99+
136.00 pm   
99+
Covalent Radius
122.00 pm   
99+
147.00 pm   
37
Van der Waals Radius
187.00 pm   
32
200.00 pm   
28
Atomic Weight
69.72 amu   
99+
98.00 amu   
99+
Atomic Volume
11.80 cm3/mol   
99+
8.50 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Zinc
  
Molybdenum
  
Next Element
Rubidium
  
Ruthenium
  
Valence Electron Potential
69.70 (-eV)   
19
180.00 (-eV)   
3
Lattice Constant
451.97 pm   
18
273.50 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.60   
5
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