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Atomic Structure of Cesium and Einsteinium

Cesium
Einsteinium
Atomic Structure of Einsteinium and Cesium


Atomic
Atomic Number
55  
99+
99  
19
Electron Configuration
[Xe] 6s1  
[Rn] 5f11 7s2  
Crystal Structure
Body Centered Cubic (BCC)  
Face Centered Cubic (FCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
FCC-Crystal-Structure-of-Einsteinium.jpg#100  
Atom
  
  
Number of Protons
55  
99+
99  
19
Number of Neutrons
78  
99+
153  
10
Number of Electrons
55  
99+
99  
19
Radius of an Atom
  
  
Atomic Radius
265.00 pm  
2
186.00 pm  
11
Covalent Radius
244.00 pm  
2
186.00 pm  
21
Van der Waals Radius
343.00 pm  
2
0.00 pm  
99+
Atomic Weight
132.91 amu  
99+
252.00 amu  
16
Atomic Volume
71.07 cm3/mol  
1
17.04 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Tin
  
Californium
  
Next Element
Barium
  
Fermium
  
Valence Electron Potential
8.62 (-eV)  
99+
0.00 (-eV)  
99+
Lattice Constant
614.10 pm  
5
582.00 pm  
8
Lattice Angles
π/2, π/2, π/2  
-  
Lattice C/A Ratio
1.87  
3
1.29  
99+
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