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Atomic Structure of Promethium and Strontium

Promethium
Strontium
Atomic Structure of Strontium and Promethium


Atomic Properties
Atomic Number
61   
99+
38   
99+
Electron Configuration
[Xe] 4f5 6s2   
[Kr] 5s2   
Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Face Centered Cubic (FCC)   
Crystal Lattice
DHCP-Crystal-Structure-of-Promethium.jpg#100   
FCC-Crystal-Structure-of-Strontium.jpg#100   
Atom
  
  
Number of Protons
61   
99+
38   
99+
Number of Neutrons
84   
40
50   
99+
Number of Electrons
61   
99+
38   
99+
Radius of an Atom
  
  
Atomic Radius
183.00 pm   
10
215.00 pm   
5
Covalent Radius
199.00 pm   
12
195.00 pm   
15
Van der Waals Radius
236.00 pm   
16
249.00 pm   
7
Atomic Weight
145.00 amu   
99+
87.62 amu   
99+
Atomic Volume
22.39 cm3/mol   
12
33.70 cm3/mol   
6
Adjacent Atomic Numbers
  
  
Previous Element
Neodymium
  
Rubidium
  
Next Element
Samarium
  
Yttrium
  
Valence Electron Potential
44.10 (-eV)   
39
25.70 (-eV)   
99+
Lattice Constant
Not Available   
608.49 pm   
6
Lattice Angles
Unknown   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
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