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Atomic Structure of Magnesium and Barium

Magnesium
Barium
Atomic Structure of Barium and Magnesium


Atomic Properties
Atomic Number
12   
99+
56   
99+
Electron Configuration
[Ne] 3s2   
[Xe] 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Body Centered Cubic (BCC)   
Crystal Lattice
HCP-Crystal-Structure-of-Magnesium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
12   
99+
56   
99+
Number of Neutrons
12   
99+
81   
99+
Number of Electrons
12   
99+
56   
99+
Radius of an Atom
  
  
Atomic Radius
160.00 pm   
27
222.00 pm   
4
Covalent Radius
141.00 pm   
99+
215.00 pm   
5
Van der Waals Radius
173.00 pm   
37
268.00 pm   
6
Atomic Weight
24.31 amu   
99+
137.33 amu   
99+
Atomic Volume
13.97 cm3/mol   
37
39.24 cm3/mol   
5
Adjacent Atomic Numbers
  
  
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Sodium
  
Cesium
  
Next Element
Aluminium
  
Lanthanum
  
Valence Electron Potential
40.00 (-eV)   
99+
21.30 (-eV)   
99+
Lattice Constant
320.94 pm   
99+
502.80 pm   
15
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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