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Atomic Structure of Calcium and Strontium


Atomic Structure of Strontium and Calcium


Atomic Properties

Atomic Number
20   
99+
38   
99+

Electron Configuration
[Ar] 4s2   
[Kr] 5s2   

Crystal Structure
Face Centered Cubic (FCC)   
Face Centered Cubic (FCC)   

Crystal Lattice
FCC-Crystal-Structure-of-Calcium.jpg#100   
FCC-Crystal-Structure-of-Strontium.jpg#100   

Atom
  
  

Number of Protons
20   
99+
38   
99+

Number of Neutrons
20   
99+
50   
99+

Number of Electrons
20   
99+
38   
99+

Radius of an Atom
  
  

Atomic Radius
197.00 pm   
6
215.00 pm   
5

Covalent Radius
176.00 pm   
22
195.00 pm   
15

Van der Waals Radius
231.00 pm   
19
249.00 pm   
7

Atomic Weight
40.08 amu   
99+
87.62 amu   
99+

Atomic Volume
29.90 cm3/mol   
7
33.70 cm3/mol   
6

Adjacent Atomic Numbers
  
  

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Potassium
  
Rubidium
  

Next Element
Scandium
  
Yttrium
  

Valence Electron Potential
29.00 (-eV)   
99+
25.70 (-eV)   
99+

Lattice Constant
558.84 pm   
9
608.49 pm   
6

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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