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Atomic Structure of Beryllium and Cesium

Beryllium
Cesium
Atomic Structure of Cesium and Beryllium


Atomic Properties
Atomic Number
4   
99+
55   
99+
Electron Configuration
[He] 2s2   
[Xe] 6s1   
Crystal Structure
Hexagonal Close Packed (HCP)   
Body Centered Cubic (BCC)   
Crystal Lattice
HCP-Crystal-Structure-of-Beryllium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
4   
99+
55   
99+
Number of Neutrons
5   
99+
78   
99+
Number of Electrons
4   
99+
55   
99+
Radius of an Atom
  
  
Atomic Radius
112.00 pm   
99+
265.00 pm   
1
Covalent Radius
96.00 pm   
99+
244.00 pm   
2
Van der Waals Radius
153.00 pm   
99+
343.00 pm   
2
Atomic Weight
9.01 amu   
99+
132.91 amu   
99+
Atomic Volume
5.00 cm3/mol   
99+
71.07 cm3/mol   
1
Adjacent Atomic Numbers
  
  
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Lithium
  
Tin
  
Next Element
Sodium
  
Barium
  
Valence Electron Potential
82.00 (-eV)   
15
8.62 (-eV)   
99+
Lattice Constant
228.58 pm   
99+
614.10 pm   
5
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
1.57   
18
Not Available   
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