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Atomic Structure of Strontium and Actinium

Strontium
Actinium
Atomic Structure of Actinium and Strontium


Atomic Properties
Atomic Number
38   
99+
89   
29
Electron Configuration
[Kr] 5s2   
[Rn] 6d1 7s2   
Crystal Structure
Face Centered Cubic (FCC)   
Face Centered Cubic (FCC)   
Crystal Lattice
FCC-Crystal-Structure-of-Strontium.jpg#100   
FCC-Crystal-Structure-of-Actinium.jpg#100   
Atom
  
  
Number of Protons
38   
99+
89   
29
Number of Neutrons
50   
99+
138   
16
Number of Electrons
38   
99+
89   
29
Radius of an Atom
  
  
Atomic Radius
215.00 pm   
5
195.00 pm   
7
Covalent Radius
195.00 pm   
15
Not Available   
Van der Waals Radius
249.00 pm   
7
Not Available   
Atomic Weight
87.62 amu   
99+
227.00 amu   
25
Atomic Volume
33.70 cm3/mol   
6
22.54 cm3/mol   
11
Adjacent Atomic Numbers
  
  
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Rubidium
  
Radium
  
Next Element
Yttrium
  
Thorium
  
Valence Electron Potential
25.70 (-eV)   
99+
38.60 (-eV)   
99+
Lattice Constant
608.49 pm   
6
567.00 pm   
8
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
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