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Atomic Structure of Polonium and Samarium


Atomic Structure of Samarium and Polonium


Atomic Properties

Atomic Number
84   
32
62   
99+

Electron Configuration
[Xe] 4f14 5d10 6s2 6p4   
[Xe] 4f6 6s2   

Crystal Structure
Monoclinic (MON)   
Rhombohedral (RHO)   

Crystal Lattice
MON-Crystal-Structure-of-Polonium.jpg#100   
RHO-Crystal-Structure-of-Samarium.jpg#100   

Atom
  
  

Number of Protons
84   
32
62   
99+

Number of Neutrons
125   
19
88   
39

Number of Electrons
84   
32
62   
99+

Radius of an Atom
  
  

Atomic Radius
168.00 pm   
23
180.00 pm   
14

Covalent Radius
140.00 pm   
99+
198.00 pm   
13

Van der Waals Radius
197.00 pm   
29
229.00 pm   
20

Atomic Weight
209.00 amu   
28
150.36 amu   
99+

Atomic Volume
22.23 cm3/mol   
13
19.95 cm3/mol   
19

Adjacent Atomic Numbers
  
  

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Bismuth
  
Promethium
  

Next Element
Francium
  
Europium
  

Valence Electron Potential
Not Available   
44.80 (-eV)   
37

Lattice Constant
335.90 pm   
99+
362.10 pm   
33

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

Lattice C/A Ratio
Not Available   
Not Available   

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