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Atomic Structure of Strontium and Lanthanum

Strontium
Lanthanum
Atomic Structure of Lanthanum and Strontium


Atomic Properties
Atomic Number
38   
99+
57   
99+
Electron Configuration
[Kr] 5s2   
[Xe] 5d2 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-Lanthanum.jpg#100   
Atom
  
  
Number of Protons
38   
99+
57   
99+
Number of Neutrons
50   
99+
82   
99+
Number of Electrons
38   
99+
57   
99+
Radius of an Atom
  
  
Atomic Radius
215.00 pm   
5
187.00 pm   
8
Covalent Radius
195.00 pm   
15
207.00 pm   
6
Van der Waals Radius
249.00 pm   
7
240.00 pm   
13
Atomic Weight
87.62 amu   
99+
138.91 amu   
99+
Atomic Volume
33.70 cm3/mol   
6
20.73 cm3/mol   
16
Adjacent Atomic Numbers
  
  
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Rubidium
  
Barium
  
Next Element
Yttrium
  
Cerium
  
Valence Electron Potential
25.70 (-eV)   
99+
40.71 (-eV)   
99+
Lattice Constant
608.49 pm   
6
377.20 pm   
28
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.62   
2
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