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Atomic Structure of Lanthanum and Bismuth

Lanthanum
Bismuth
Atomic Structure of Bismuth and Lanthanum


Atomic Properties
Atomic Number
57   
99+
83   
33
Electron Configuration
[Xe] 5d2 6s2   
[Xe] 4f14 5d10 6s2 6p3   
Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Rhombohedral (RHO)   
Crystal Lattice
DHCP-Crystal-Structure-of-Lanthanum.jpg#100   
RHO-Crystal-Structure-of-Bismuth.jpg#100   
Atom
  
  
Number of Protons
57   
99+
83   
33
Number of Neutrons
82   
99+
126   
18
Number of Electrons
57   
99+
83   
33
Radius of an Atom
  
  
Atomic Radius
187.00 pm   
8
156.00 pm   
29
Covalent Radius
207.00 pm   
6
148.00 pm   
36
Van der Waals Radius
240.00 pm   
13
207.00 pm   
26
Atomic Weight
138.91 amu   
99+
208.98 amu   
29
Atomic Volume
20.73 cm3/mol   
16
21.30 cm3/mol   
14
Adjacent Atomic Numbers
  
  
Previous Element
Barium
  
Lead
  
Next Element
Cerium
  
Polonium
  
Valence Electron Potential
40.71 (-eV)   
99+
41.90 (-eV)   
99+
Lattice Constant
377.20 pm   
28
667.40 pm   
2
Lattice Angles
π/2, π/2, 2 π/3   
NA   
Lattice C/A Ratio
1.62   
2
Not Available   
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