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Atomic Structure of Promethium and Tin

Promethium
Tin
Atomic Structure of Tin and Promethium


Atomic Properties
Atomic Number
61   
99+
50   
99+
Electron Configuration
[Xe] 4f5 6s2   
[Kr] 4d10 5s2 5p2   
Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Tetragonal (TETR)   
Crystal Lattice
DHCP-Crystal-Structure-of-Promethium.jpg#100   
TETR-Crystal-Structure-of-Tin.jpg#100   
Atom
  
  
Number of Protons
61   
99+
50   
99+
Number of Neutrons
84   
40
69   
99+
Number of Electrons
61   
99+
50   
99+
Radius of an Atom
  
  
Atomic Radius
183.00 pm   
10
140.00 pm   
38
Covalent Radius
199.00 pm   
12
139.00 pm   
99+
Van der Waals Radius
236.00 pm   
16
217.00 pm   
23
Atomic Weight
145.00 amu   
99+
118.71 amu   
99+
Atomic Volume
22.39 cm3/mol   
12
16.30 cm3/mol   
32
Adjacent Atomic Numbers
  
  
Previous Element
Neodymium
  
Indium
  
Next Element
Samarium
  
Cesium
  
Valence Electron Potential
44.10 (-eV)   
39
83.50 (-eV)   
14
Lattice Constant
Not Available   
583.18 pm   
7
Lattice Angles
Unknown   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
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