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Atomic Structure of Calcium and Sodium


Atomic Structure of Sodium and Calcium


Atomic Properties

Atomic Number
20   
99+
11   
99+

Electron Configuration
[Ar] 4s2   
[Ne] 3s1   

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

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

Atom
  
  

Number of Protons
20   
99+
11   
99+

Number of Neutrons
20   
99+
12   
99+

Number of Electrons
20   
99+
11   
99+

Radius of an Atom
  
  

Atomic Radius
197.00 pm   
6
186.00 pm   
9

Covalent Radius
176.00 pm   
22
166.00 pm   
27

Van der Waals Radius
231.00 pm   
19
227.00 pm   
21

Atomic Weight
40.08 amu   
99+
22.99 amu   
99+

Atomic Volume
29.90 cm3/mol   
7
23.70 cm3/mol   
10

Adjacent Atomic Numbers
  
  

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Potassium
  
Beryllium
  

Next Element
Scandium
  
Magnesium
  

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

Lattice Constant
558.84 pm   
9
429.06 pm   
19

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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