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Atomic Structure of Manganese and Calcium

Manganese
Calcium
Atomic Structure of Calcium and Manganese


Atomic Properties
Atomic Number
25   
99+
20   
99+
Electron Configuration
[Ar] 3d5 4s2   
[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
25   
99+
20   
99+
Number of Neutrons
30   
99+
20   
99+
Number of Electrons
25   
99+
20   
99+
Radius of an Atom
  
  
Atomic Radius
127.00 pm   
99+
197.00 pm   
6
Covalent Radius
139.00 pm   
99+
176.00 pm   
22
Van der Waals Radius
200.00 pm   
28
231.00 pm   
19
Atomic Weight
54.94 amu   
99+
40.08 amu   
99+
Atomic Volume
1.39 cm3/mol   
99+
29.90 cm3/mol   
7
Adjacent Atomic Numbers
  
  
Previous Element
Chromium
  
Potassium
  
Next Element
Iron
  
Scandium
  
Valence Electron Potential
220.00 (-eV)   
2
29.00 (-eV)   
99+
Lattice Constant
891.25 pm   
1
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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