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Atomic Structure of Gadolinium and Protactinium

Gadolinium
Protactinium
Atomic Structure of Protactinium and Gadolinium


Atomic Properties
Atomic Number
64   
99+
91   
27
Electron Configuration
[Xe] 4f7 5d1 6s2   
[Rn] 5f2 6d1 7s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Tetragonal (TETR)   
Crystal Lattice
HCP-Crystal-Structure-of-Gadolinium.jpg#100   
TETR-Crystal-Structure-of-Protactinium.jpg#100   
Atom
  
  
Number of Protons
64   
99+
91   
27
Number of Neutrons
93   
37
122   
21
Number of Electrons
64   
99+
91   
27
Radius of an Atom
  
  
Atomic Radius
180.00 pm   
14
163.00 pm   
25
Covalent Radius
196.00 pm   
14
200.00 pm   
11
Van der Waals Radius
237.00 pm   
15
243.00 pm   
11
Atomic Weight
47.87 amu   
99+
231.04 amu   
24
Atomic Volume
19.90 cm3/mol   
20
15.00 cm3/mol   
34
Adjacent Atomic Numbers
  
  
Previous Element
Europium
  
Thorium
  
Next Element
Terbium
  
Uranium
  
Valence Electron Potential
46.10 (-eV)   
34
92.00 (-eV)   
11
Lattice Constant
363.60 pm   
32
392.50 pm   
23
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.59   
9
Not Available   
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