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Atomic Structure of Erbium and Praseodymium


Atomic Structure of Praseodymium and Erbium


Atomic Properties

Atomic Number
68   
99+
59   
99+

Electron Configuration
[Xe] 4f12 6s2   
[Xe] 4f3 6s2   

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

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

Atom
  
  

Number of Protons
68   
99+
59   
99+

Number of Neutrons
99   
33
82   
99+

Number of Electrons
68   
99+
59   
99+

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
182.00 pm   
11

Covalent Radius
189.00 pm   
19
203.00 pm   
9

Van der Waals Radius
Not Available   
239.00 pm   
14

Atomic Weight
167.26 amu   
99+
140.91 amu   
99+

Atomic Volume
18.40 cm3/mol   
25
20.80 cm3/mol   
15

Adjacent Atomic Numbers
  
  

Previous Element
Holmium
  
Cerium
  

Next Element
Thulium
  
Neodymium
  

Valence Electron Potential
49.00 (-eV)   
29
42.64 (-eV)   
99+

Lattice Constant
355.88 pm   
39
367.25 pm   
29

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

Lattice C/A Ratio
1.57   
17
1.61   
4

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