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Atomic Structure of Barium and Calcium

Barium
Calcium
Atomic Structure of Calcium and Barium


Atomic Properties
Atomic Number
56   
99+
20   
99+
Electron Configuration
[Xe] 6s2   
[Ar] 4s2   
Crystal Structure
Body Centered Cubic (BCC)   
Face Centered Cubic (FCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
FCC-Crystal-Structure-of-Calcium.jpg#100   
Atom
  
  
Number of Protons
56   
99+
20   
99+
Number of Neutrons
81   
99+
20   
99+
Number of Electrons
56   
99+
20   
99+
Radius of an Atom
  
  
Atomic Radius
222.00 pm   
4
197.00 pm   
6
Covalent Radius
215.00 pm   
5
176.00 pm   
22
Van der Waals Radius
268.00 pm   
6
231.00 pm   
19
Atomic Weight
137.33 amu   
99+
40.08 amu   
99+
Atomic Volume
39.24 cm3/mol   
5
29.90 cm3/mol   
7
Adjacent Atomic Numbers
  
  
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Cesium
  
Potassium
  
Next Element
Lanthanum
  
Scandium
  
Valence Electron Potential
21.30 (-eV)   
99+
29.00 (-eV)   
99+
Lattice Constant
502.80 pm   
15
558.84 pm   
9
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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