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Atomic Structure of Calcium and Yttrium

Calcium
Yttrium
Atomic Structure of Yttrium and Calcium


Atomic Properties
Atomic Number
20   
99+
39   
99+
Electron Configuration
[Ar] 4s2   
[Kr] 4d1 5s2   
Crystal Structure
Face Centered Cubic (FCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
FCC-Crystal-Structure-of-Calcium.jpg#100   
HCP-Crystal-Structure-of-Yttrium.jpg#100   
Atom
  
  
Number of Protons
20   
99+
39   
99+
Number of Neutrons
20   
99+
50   
99+
Number of Electrons
20   
99+
39   
99+
Radius of an Atom
  
  
Atomic Radius
197.00 pm   
6
180.00 pm   
14
Covalent Radius
176.00 pm   
22
190.00 pm   
18
Van der Waals Radius
231.00 pm   
19
200.00 pm   
28
Atomic Weight
40.08 amu   
99+
88.91 amu   
99+
Atomic Volume
29.90 cm3/mol   
7
19.80 cm3/mol   
21
Adjacent Atomic Numbers
  
  
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Potassium
  
Strontium
  
Next Element
Scandium
  
Zirconium
  
Valence Electron Potential
29.00 (-eV)   
99+
48.00 (-eV)   
30
Lattice Constant
558.84 pm   
9
364.74 pm   
31
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.57   
16
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