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Atomic Structure of Strontium and Promethium

Strontium
Promethium
Atomic Structure of Promethium and Strontium


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