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Atomic Structure of Calcium and Cerium

Calcium
Cerium
Atomic Structure of Cerium and Calcium


Atomic Properties
Atomic Number
20   
99+
58   
99+
Electron Configuration
[Ar] 4s2   
[Xe] 4f1 5d1 6s2   
Crystal Structure
Face Centered Cubic (FCC)   
Double Hexagonal Close Packed (DHCP)   
Crystal Lattice
FCC-Crystal-Structure-of-Calcium.jpg#100   
DHCP-Crystal-Structure-of-Cerium.jpg#100   
Atom
  
  
Number of Protons
20   
99+
58   
99+
Number of Neutrons
20   
99+
82   
99+
Number of Electrons
20   
99+
58   
99+
Radius of an Atom
  
  
Atomic Radius
197.00 pm   
6
181.80 pm   
12
Covalent Radius
176.00 pm   
22
204.00 pm   
8
Van der Waals Radius
231.00 pm   
19
235.00 pm   
17
Atomic Weight
40.08 amu   
99+
140.12 amu   
99+
Atomic Volume
29.90 cm3/mol   
7
20.67 cm3/mol   
17
Adjacent Atomic Numbers
  
  
Previous Element
Potassium
  
Lanthanum
  
Next Element
Scandium
  
Praseodymium
  
Valence Electron Potential
29.00 (-eV)   
99+
41.78 (-eV)   
99+
Lattice Constant
558.84 pm   
9
362.00 pm   
34
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
Not Available   
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