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Atomic Structure of Calcium and Chromium

Calcium
Chromium
Atomic Structure of Chromium and Calcium


Atomic Properties
Atomic Number
20   
99+
24   
99+
Electron Configuration
[Ar] 4s2   
[Ar] 3d5 4s1   
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+
24   
99+
Number of Neutrons
20   
99+
28   
99+
Number of Electrons
20   
99+
24   
99+
Radius of an Atom
  
  
Atomic Radius
197.00 pm   
6
128.00 pm   
99+
Covalent Radius
176.00 pm   
22
139.00 pm   
99+
Van der Waals Radius
231.00 pm   
19
200.00 pm   
28
Atomic Weight
40.08 amu   
99+
52.00 amu   
99+
Atomic Volume
29.90 cm3/mol   
7
7.23 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Potassium
  
Vanadium
  
Next Element
Scandium
  
Manganese
  
Valence Electron Potential
29.00 (-eV)   
99+
170.00 (-eV)   
4
Lattice Constant
558.84 pm   
9
291.00 pm   
99+
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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