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Atomic Structure of Francium and Calcium

Francium
Calcium
Atomic Structure of Calcium and Francium


Atomic Properties
Atomic Number
87   
31
20   
99+
Electron Configuration
[Rn] 7s1   
[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
87   
31
20   
99+
Number of Neutrons
136   
17
20   
99+
Number of Electrons
87   
31
20   
99+
Radius of an Atom
  
  
Atomic Radius
Not Available   
197.00 pm   
6
Covalent Radius
260.00 pm   
1
176.00 pm   
22
Van der Waals Radius
348.00 pm   
1
231.00 pm   
19
Atomic Weight
223.00 amu   
27
40.08 amu   
99+
Atomic Volume
Not Available   
29.90 cm3/mol   
7
Adjacent Atomic Numbers
  
  
Previous Element
Polonium
  
Potassium
  
Next Element
Radium
  
Scandium
  
Valence Electron Potential
8.00 (-eV)   
99+
29.00 (-eV)   
99+
Lattice Constant
Not Available   
558.84 pm   
9
Lattice Angles
NA   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
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