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Atomic Structure of Strontium and 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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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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