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Atomic Structure of Praseodymium and Neptunium


Atomic Structure of Neptunium and Praseodymium


Atomic Properties

Atomic Number
59   
99+
93   
25

Electron Configuration
[Xe] 4f3 6s2   
[Rn] 5f4 6d1 7s2   

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

Crystal Lattice
HCP-Crystal-Structure-of-Praseodymium.jpg#100   
ORTH-Crystal-Structure-of-Neptunium.jpg#100   

Atom
  
  

Number of Protons
59   
99+
93   
25

Number of Neutrons
82   
99+
144   
14

Number of Electrons
59   
99+
93   
25

Radius of an Atom
  
  

Atomic Radius
182.00 pm   
11
155.00 pm   
30

Covalent Radius
203.00 pm   
9
190.00 pm   
18

Van der Waals Radius
239.00 pm   
14
221.00 pm   
22

Atomic Weight
140.91 amu   
99+
237.00 amu   
22

Atomic Volume
20.80 cm3/mol   
15
11.62 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Cerium
  
Uranium
  

Next Element
Neodymium
  
Plutonium
  

Valence Electron Potential
42.64 (-eV)   
99+
96.00 (-eV)   
9

Lattice Constant
367.25 pm   
29
666.30 pm   
3

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

Lattice C/A Ratio
1.61   
4
Not Available   

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