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Atomic Structure of Einsteinium and Calcium

Einsteinium
Calcium
Atomic Structure of Calcium and Einsteinium


Atomic
Atomic Number
99  
19
20  
99+
Electron Configuration
[Rn] 5f11 7s2  
[Ar] 4s2  
Crystal Structure
Face Centered Cubic (FCC)  
Face Centered Cubic (FCC)  
Crystal Lattice
FCC-Crystal-Structure-of-Einsteinium.jpg#100  
FCC-Crystal-Structure-of-Calcium.jpg#100  
Atom
  
  
Number of Protons
99  
19
20  
99+
Number of Neutrons
153  
10
20  
99+
Number of Electrons
99  
19
20  
99+
Radius of an Atom
  
  
Atomic Radius
186.00 pm  
11
197.00 pm  
8
Covalent Radius
186.00 pm  
21
176.00 pm  
24
Van der Waals Radius
0.00 pm  
99+
231.00 pm  
23
Atomic Weight
252.00 amu  
16
40.08 amu  
99+
Atomic Volume
17.04 cm3/mol  
99+
29.90 cm3/mol  
10
Adjacent Atomic Numbers
  
  
Previous Element
Californium
  
Potassium
  
Next Element
Fermium
  
Scandium
  
Valence Electron Potential
0.00 (-eV)  
99+
29.00 (-eV)  
99+
Lattice Constant
582.00 pm  
8
558.84 pm  
10
Lattice Angles
-  
π/2, π/2, π/2  
Lattice C/A Ratio
1.29  
99+
1.55  
99+
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