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Atomic Structure of Lead and Americium

Lead
Americium
Atomic Structure of Americium and Lead


Atomic Properties
Atomic Number
82   
34
95   
23
Electron Configuration
[Xe] 4f14 5d10 6s2 6p2   
[Rn] 5f7 7s2   
Crystal Structure
Face Centered Cubic (FCC)   
Double Hexagonal Close Packed (DHCP)   
Crystal Lattice
FCC-Crystal-Structure-of-Lead.jpg#100   
DHCP-Crystal-Structure-of-Americium.jpg#100   
Atom
  
  
Number of Protons
82   
34
95   
23
Number of Neutrons
125   
19
148   
12
Number of Electrons
82   
34
95   
23
Radius of an Atom
  
  
Atomic Radius
175.00 pm   
19
173.00 pm   
21
Covalent Radius
146.00 pm   
38
180.00 pm   
21
Van der Waals Radius
202.00 pm   
27
244.00 pm   
10
Atomic Weight
207.20 amu   
30
243.00 amu   
20
Atomic Volume
18.17 cm3/mol   
27
17.86 cm3/mol   
29
Adjacent Atomic Numbers
  
  
Previous Element
Thallium
  
Plutonium
  
Next Element
Bismuth
  
Curium
  
Valence Electron Potential
24.20 (-eV)   
99+
44.00 (-eV)   
40
Lattice Constant
495.08 pm   
16
346.81 pm   
99+
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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