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Atomic Structure of Praseodymium and Scandium

Praseodymium
Scandium
Atomic Structure of Scandium and Praseodymium


Atomic Properties
Atomic Number
59   
99+
21   
99+
Electron Configuration
[Xe] 4f3 6s2   
[Ar] 3d1 4s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Praseodymium.jpg#100   
HCP-Crystal-Structure-of-Scandium.jpg#100   
Atom
  
  
Number of Protons
59   
99+
21   
99+
Number of Neutrons
82   
99+
24   
99+
Number of Electrons
59   
99+
21   
99+
Radius of an Atom
  
  
Atomic Radius
182.00 pm   
11
162.00 pm   
26
Covalent Radius
203.00 pm   
9
170.00 pm   
25
Van der Waals Radius
239.00 pm   
14
211.00 pm   
25
Atomic Weight
140.91 amu   
99+
44.96 amu   
99+
Atomic Volume
20.80 cm3/mol   
15
15.00 cm3/mol   
34
Adjacent Atomic Numbers
  
  
Previous Element
Cerium
  
Calcium
  
Next Element
Neodymium
  
Titanium
  
Valence Electron Potential
42.64 (-eV)   
99+
58.00 (-eV)   
24
Lattice Constant
367.25 pm   
29
330.90 pm   
99+
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.61   
4
1.59   
7
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