Home
Compare Metals


Atomic Structure of Praseodymium and Samarium


Atomic Structure of Samarium and Praseodymium


Atomic Properties

Atomic Number
59   
99+
62   
99+

Electron Configuration
[Xe] 4f3 6s2   
[Xe] 4f6 6s2   

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

Crystal Lattice
HCP-Crystal-Structure-of-Praseodymium.jpg#100   
RHO-Crystal-Structure-of-Samarium.jpg#100   

Atom
  
  

Number of Protons
59   
99+
62   
99+

Number of Neutrons
82   
99+
88   
39

Number of Electrons
59   
99+
62   
99+

Radius of an Atom
  
  

Atomic Radius
182.00 pm   
11
180.00 pm   
14

Covalent Radius
203.00 pm   
9
198.00 pm   
13

Van der Waals Radius
239.00 pm   
14
229.00 pm   
20

Atomic Weight
140.91 amu   
99+
150.36 amu   
99+

Atomic Volume
20.80 cm3/mol   
15
19.95 cm3/mol   
19

Adjacent Atomic Numbers
  
  

Previous Element
Cerium
  
Promethium
  

Next Element
Neodymium
  
Europium
  

Valence Electron Potential
42.64 (-eV)   
99+
44.80 (-eV)   
37

Lattice Constant
367.25 pm   
29
362.10 pm   
33

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

Lattice C/A Ratio
1.61   
4
Not Available   

Mechanical >>
<< Chemical

Compare Lanthanide Series

Lanthanide Metals

Lanthanide Metals

» More Lanthanide Metals

Compare Lanthanide Series

» More Compare Lanthanide Series