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Atomic Structure of Magnesium and Calcium


Atomic Structure of Calcium and Magnesium


Atomic Properties

Atomic Number
12   
99+
20   
99+

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

Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   

Crystal Lattice
HCP-Crystal-Structure-of-Magnesium.jpg#100   
FCC-Crystal-Structure-of-Calcium.jpg#100   

Atom
  
  

Number of Protons
12   
99+
20   
99+

Number of Neutrons
12   
99+
20   
99+

Number of Electrons
12   
99+
20   
99+

Radius of an Atom
  
  

Atomic Radius
160.00 pm   
27
197.00 pm   
6

Covalent Radius
141.00 pm   
99+
176.00 pm   
22

Van der Waals Radius
173.00 pm   
37
231.00 pm   
19

Atomic Weight
24.31 amu   
99+
40.08 amu   
99+

Atomic Volume
13.97 cm3/mol   
37
29.90 cm3/mol   
7

Adjacent Atomic Numbers
  
  

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

Lattice Constant
320.94 pm   
99+
558.84 pm   
9

Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   

Lattice C/A Ratio
Not Available   
Not Available   

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