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Atomic Structure of Thorium and Neodymium

Thorium
Neodymium
Atomic Structure of Neodymium and Thorium


Atomic Properties
Atomic Number
90   
28
60   
99+
Electron Configuration
[Rn] 6d2 7s2   
[Xe] 4f4 6s2   
Crystal Structure
Face Centered Cubic (FCC)   
Double Hexagonal Close Packed (DHCP)   
Crystal Lattice
FCC-Crystal-Structure-of-Thorium.jpg#100   
DHCP-Crystal-Structure-of-Neodymium.jpg#100   
Atom
  
  
Number of Protons
90   
28
60   
99+
Number of Neutrons
142   
15
84   
40
Number of Electrons
90   
28
60   
99+
Radius of an Atom
  
  
Atomic Radius
179.80 pm   
15
181.00 pm   
13
Covalent Radius
206.00 pm   
7
201.00 pm   
10
Van der Waals Radius
237.00 pm   
15
229.00 pm   
20
Atomic Weight
232.04 amu   
23
144.24 amu   
99+
Atomic Volume
19.90 cm3/mol   
20
20.60 cm3/mol   
18
Adjacent Atomic Numbers
  
  
Previous Element
Actinium
  
Praseodymium
  
Next Element
Protactinium
  
Promethium
  
Valence Electron Potential
59.30 (-eV)   
23
43.40 (-eV)   
99+
Lattice Constant
508.42 pm   
14
365.80 pm   
30
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.61   
4
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