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Atomic Structure of Neodymium and Praseodymium


Atomic Structure of Praseodymium and Neodymium


Atomic Properties

Atomic Number
60   
99+
59   
99+

Electron Configuration
[Xe] 4f4 6s2   
[Xe] 4f3 6s2   

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

Crystal Lattice
DHCP-Crystal-Structure-of-Neodymium.jpg#100   
HCP-Crystal-Structure-of-Praseodymium.jpg#100   

Atom
  
  

Number of Protons
60   
99+
59   
99+

Number of Neutrons
84   
40
82   
99+

Number of Electrons
60   
99+
59   
99+

Radius of an Atom
  
  

Atomic Radius
181.00 pm   
13
182.00 pm   
11

Covalent Radius
201.00 pm   
10
203.00 pm   
9

Van der Waals Radius
229.00 pm   
20
239.00 pm   
14

Atomic Weight
144.24 amu   
99+
140.91 amu   
99+

Atomic Volume
20.60 cm3/mol   
18
20.80 cm3/mol   
15

Adjacent Atomic Numbers
  
  

Previous Element
Cerium
  

Next Element
Promethium
  
Neodymium
  

Valence Electron Potential
43.40 (-eV)   
99+
42.64 (-eV)   
99+

Lattice Constant
365.80 pm   
30
367.25 pm   
29

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

Lattice C/A Ratio
1.61   
4
1.61   
4

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