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Atomic Structure of Calcium and Scandium

Calcium
Scandium
Atomic Structure of Scandium and Calcium


Atomic Properties
Atomic Number
20   
99+
21   
99+
Electron Configuration
[Ar] 4s2   
[Ar] 3d1 4s2   
Crystal Structure
Face Centered Cubic (FCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
FCC-Crystal-Structure-of-Calcium.jpg#100   
HCP-Crystal-Structure-of-Scandium.jpg#100   
Atom
  
  
Number of Protons
20   
99+
21   
99+
Number of Neutrons
20   
99+
24   
99+
Number of Electrons
20   
99+
21   
99+
Radius of an Atom
  
  
Atomic Radius
197.00 pm   
6
162.00 pm   
26
Covalent Radius
176.00 pm   
22
170.00 pm   
25
Van der Waals Radius
231.00 pm   
19
211.00 pm   
25
Atomic Weight
40.08 amu   
99+
44.96 amu   
99+
Atomic Volume
29.90 cm3/mol   
7
15.00 cm3/mol   
34
Adjacent Atomic Numbers
  
  
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Potassium
  
Calcium
  
Next Element
Scandium
  
Titanium
  
Valence Electron Potential
29.00 (-eV)   
99+
58.00 (-eV)   
24
Lattice Constant
558.84 pm   
9
330.90 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.59   
7
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