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Atomic Structure of Lead and 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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