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Atomic Structure of Calcium and Fermium

Calcium
Fermium
Atomic Structure of Fermium and Calcium


Atomic
Atomic Number
20  
99+
100  
18
Electron Configuration
[Ar] 4s2  
[Rn] 5f12 7s2  
Crystal Structure
Face Centered Cubic (FCC)  
Not Known  
Crystal Lattice
FCC-Crystal-Structure-of-Calcium.jpg#100  
Unknown-Crystal-Structure-of-Fermium.jpg#100  
Atom
  
  
Number of Protons
20  
99+
100  
18
Number of Neutrons
20  
99+
157  
8
Number of Electrons
20  
99+
100  
18
Radius of an Atom
  
  
Atomic Radius
197.00 pm  
8
180.00 pm  
16
Covalent Radius
176.00 pm  
24
180.00 pm  
23
Van der Waals Radius
231.00 pm  
23
245.00 pm  
13
Atomic Weight
40.08 amu  
99+
257.00 amu  
15
Atomic Volume
29.90 cm3/mol  
10
18.00 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Potassium
  
Einsteinium
  
Next Element
Scandium
  
Mendelevium
  
Valence Electron Potential
29.00 (-eV)  
99+
0.00 (-eV)  
99+
Lattice Constant
558.84 pm  
10
350.00 pm  
99+
Lattice Angles
π/2, π/2, π/2  
-  
Lattice C/A Ratio
1.55  
99+
1.63  
13
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