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Atomic Structure of Lead and Promethium

Lead
Promethium
Atomic Structure of Promethium and Lead


Atomic Properties
Atomic Number
82   
34
61   
99+
Electron Configuration
[Xe] 4f14 5d10 6s2 6p2   
[Xe] 4f5 6s2   
Crystal Structure
Face Centered Cubic (FCC)   
Double Hexagonal Close Packed (DHCP)   
Crystal Lattice
FCC-Crystal-Structure-of-Lead.jpg#100   
DHCP-Crystal-Structure-of-Promethium.jpg#100   
Atom
  
  
Number of Protons
82   
34
61   
99+
Number of Neutrons
125   
19
84   
40
Number of Electrons
82   
34
61   
99+
Radius of an Atom
  
  
Atomic Radius
175.00 pm   
19
183.00 pm   
10
Covalent Radius
146.00 pm   
38
199.00 pm   
12
Van der Waals Radius
202.00 pm   
27
236.00 pm   
16
Atomic Weight
207.20 amu   
30
145.00 amu   
99+
Atomic Volume
18.17 cm3/mol   
27
22.39 cm3/mol   
12
Adjacent Atomic Numbers
  
  
Previous Element
Thallium
  
Neodymium
  
Next Element
Bismuth
  
Samarium
  
Valence Electron Potential
24.20 (-eV)   
99+
44.10 (-eV)   
39
Lattice Constant
495.08 pm   
16
Not Available   
Lattice Angles
π/2, π/2, π/2   
Unknown   
Lattice C/A Ratio
Not Available   
Not Available   
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