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Atomic Structure of Beryllium and Holmium

Beryllium
Holmium
Atomic Structure of Holmium and Beryllium


Atomic Properties
Atomic Number
4   
99+
67   
99+
Electron Configuration
[He] 2s2   
[Xe] 4f11 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Beryllium.jpg#100   
HCP-Crystal-Structure-of-Holmium.jpg#100   
Atom
  
  
Number of Protons
4   
99+
67   
99+
Number of Neutrons
5   
99+
98   
34
Number of Electrons
4   
99+
67   
99+
Radius of an Atom
  
  
Atomic Radius
112.00 pm   
99+
176.00 pm   
18
Covalent Radius
96.00 pm   
99+
192.00 pm   
17
Van der Waals Radius
153.00 pm   
99+
216.00 pm   
24
Atomic Weight
9.01 amu   
99+
164.93 amu   
99+
Atomic Volume
5.00 cm3/mol   
99+
18.70 cm3/mol   
24
Adjacent Atomic Numbers
  
  
Previous Element
Lithium
  
Dysprosium
  
Next Element
Sodium
  
Erbium
  
Valence Electron Potential
82.00 (-eV)   
15
47.90 (-eV)   
31
Lattice Constant
228.58 pm   
99+
357.73 pm   
38
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.57   
18
1.57   
17
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