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Atomic Structure of Protactinium and Gallium

Protactinium
Gallium
Atomic Structure of Gallium and Protactinium


Atomic Properties
Atomic Number
91   
27
31   
99+
Electron Configuration
[Rn] 5f2 6d1 7s2   
[Ar] 3d10 4s2 4p1   
Crystal Structure
Tetragonal (TETR)   
Orthorhombic (ORTH)   
Crystal Lattice
TETR-Crystal-Structure-of-Protactinium.jpg#100   
ORTH-Crystal-Structure-of-Gallium.jpg#100   
Atom
  
  
Number of Protons
91   
27
31   
99+
Number of Neutrons
122   
21
39   
99+
Number of Electrons
91   
27
31   
99+
Radius of an Atom
  
  
Atomic Radius
163.00 pm   
25
135.00 pm   
99+
Covalent Radius
200.00 pm   
11
122.00 pm   
99+
Van der Waals Radius
243.00 pm   
11
187.00 pm   
32
Atomic Weight
231.04 amu   
24
69.72 amu   
99+
Atomic Volume
15.00 cm3/mol   
34
11.80 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Thorium
  
Zinc
  
Next Element
Uranium
  
Rubidium
  
Valence Electron Potential
92.00 (-eV)   
11
69.70 (-eV)   
19
Lattice Constant
392.50 pm   
23
451.97 pm   
18
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
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