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Atomic Structure of Scandium and Praseodymium


Atomic Structure of Praseodymium and Scandium


Atomic Properties

Atomic Number
21   
99+
59   
99+

Electron Configuration
[Ar] 3d1 4s2   
[Xe] 4f3 6s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
HCP-Crystal-Structure-of-Scandium.jpg#100   
HCP-Crystal-Structure-of-Praseodymium.jpg#100   

Atom
  
  

Number of Protons
21   
99+
59   
99+

Number of Neutrons
24   
99+
82   
99+

Number of Electrons
21   
99+
59   
99+

Radius of an Atom
  
  

Atomic Radius
162.00 pm   
26
182.00 pm   
11

Covalent Radius
170.00 pm   
25
203.00 pm   
9

Van der Waals Radius
211.00 pm   
25
239.00 pm   
14

Atomic Weight
44.96 amu   
99+
140.91 amu   
99+

Atomic Volume
15.00 cm3/mol   
34
20.80 cm3/mol   
15

Adjacent Atomic Numbers
  
  

Previous Element
Calcium
  
Cerium
  

Next Element
Titanium
  
Neodymium
  

Valence Electron Potential
58.00 (-eV)   
24
42.64 (-eV)   
99+

Lattice Constant
330.90 pm   
99+
367.25 pm   
29

Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
1.59   
7
1.61   
4

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