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Atomic Structure of Barium and Beryllium


Atomic Structure of Beryllium and Barium


Atomic Properties

Atomic Number
56   
99+
4   
99+

Electron Configuration
[Xe] 6s2   
[He] 2s2   

Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Beryllium.jpg#100   

Atom
  
  

Number of Protons
56   
99+
4   
99+

Number of Neutrons
81   
99+
5   
99+

Number of Electrons
56   
99+
4   
99+

Radius of an Atom
  
  

Atomic Radius
222.00 pm   
4
112.00 pm   
99+

Covalent Radius
215.00 pm   
5
96.00 pm   
99+

Van der Waals Radius
268.00 pm   
6
153.00 pm   
99+

Atomic Weight
137.33 amu   
99+
9.01 amu   
99+

Atomic Volume
39.24 cm3/mol   
5
5.00 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

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Cesium
  
Lithium
  

Next Element
Lanthanum
  
Sodium
  

Valence Electron Potential
21.30 (-eV)   
99+
82.00 (-eV)   
15

Lattice Constant
502.80 pm   
15
228.58 pm   
99+

Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   

Lattice C/A Ratio
Not Available   
1.57   
18

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