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Atomic Structure of Beryllium and Lutetium

Beryllium
Lutetium
Atomic Structure of Lutetium and Beryllium


Atomic Properties
Atomic Number
4   
99+
71   
99+
Electron Configuration
[He] 2s2   
[Xe] 6s2 4f14 5d1   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Beryllium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
4   
99+
71   
99+
Number of Neutrons
5   
99+
104   
30
Number of Electrons
4   
99+
71   
99+
Radius of an Atom
  
  
Atomic Radius
112.00 pm   
99+
174.00 pm   
20
Covalent Radius
96.00 pm   
99+
187.00 pm   
20
Van der Waals Radius
153.00 pm   
99+
221.00 pm   
22
Atomic Weight
9.01 amu   
99+
174.97 amu   
40
Atomic Volume
5.00 cm3/mol   
99+
17.78 cm3/mol   
30
Adjacent Atomic Numbers
  
  
Previous Element
Lithium
  
Ytterbium
  
Next Element
Sodium
  
Hafnium
  
Valence Electron Potential
82.00 (-eV)   
15
50.90 (-eV)   
26
Lattice Constant
228.58 pm   
99+
350.31 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.57   
18
1.59   
10
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