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Atomic Structure of Beryllium and Einsteinium

Beryllium
Einsteinium
Atomic Structure of Einsteinium and Beryllium


Atomic
Atomic Number
4  
99+
99  
19
Electron Configuration
[He] 2s2  
[Rn] 5f11 7s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Face Centered Cubic (FCC)  
Crystal Lattice
HCP-Crystal-Structure-of-Beryllium.jpg#100  
FCC-Crystal-Structure-of-Einsteinium.jpg#100  
Atom
  
  
Number of Protons
4  
99+
99  
19
Number of Neutrons
5  
99+
153  
10
Number of Electrons
4  
99+
99  
19
Radius of an Atom
  
  
Atomic Radius
112.00 pm  
99+
186.00 pm  
11
Covalent Radius
96.00 pm  
99+
186.00 pm  
21
Van der Waals Radius
153.00 pm  
99+
0.00 pm  
99+
Atomic Weight
9.01 amu  
99+
252.00 amu  
16
Atomic Volume
5.00 cm3/mol  
99+
17.04 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
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Lithium
  
Californium
  
Next Element
Sodium
  
Fermium
  
Valence Electron Potential
82.00 (-eV)  
15
0.00 (-eV)  
99+
Lattice Constant
228.58 pm  
99+
582.00 pm  
8
Lattice Angles
π/2, π/2, π/2  
-  
Lattice C/A Ratio
1.57  
99+
1.29  
99+
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