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Atomic Structure of Beryllium and 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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