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Atomic Structure of Actinium and Praseodymium


Atomic Structure of Praseodymium and Actinium


Atomic Properties

Atomic Number
89   
29
59   
99+

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

Crystal Structure
Face Centered Cubic (FCC)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
FCC-Crystal-Structure-of-Actinium.jpg#100   
HCP-Crystal-Structure-of-Praseodymium.jpg#100   

Atom
  
  

Number of Protons
89   
29
59   
99+

Number of Neutrons
138   
16
82   
99+

Number of Electrons
89   
29
59   
99+

Radius of an Atom
  
  

Atomic Radius
195.00 pm   
7
182.00 pm   
11

Covalent Radius
Not Available   
203.00 pm   
9

Van der Waals Radius
Not Available   
239.00 pm   
14

Atomic Weight
227.00 amu   
25
140.91 amu   
99+

Atomic Volume
22.54 cm3/mol   
11
20.80 cm3/mol   
15

Adjacent Atomic Numbers
  
  

Previous Element
Radium
  
Cerium
  

Next Element
Thorium
  
Neodymium
  

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

Lattice Constant
567.00 pm   
8
367.25 pm   
29

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

Lattice C/A Ratio
Not Available   
1.61   
4

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