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Atomic Structure of Beryllium and Fermium


Atomic Structure of Fermium and Beryllium


Atomic Properties

Atomic Number
4   
99+
100   
18

Electron Configuration
[He] 2s2   
[Rn] 5f12 7s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Not Known   

Crystal Lattice
HCP-Crystal-Structure-of-Beryllium.jpg#100   
Unknown-Crystal-Structure-of-Fermium.jpg#100   

Atom
  
  

Number of Protons
4   
99+
100   
18

Number of Neutrons
5   
99+
157   
7

Number of Electrons
4   
99+
100   
18

Radius of an Atom
  
  

Atomic Radius
112.00 pm   
99+
Not Available   

Covalent Radius
96.00 pm   
99+
Not Available   

Van der Waals Radius
153.00 pm   
99+
245.00 pm   
9

Atomic Weight
9.01 amu   
99+
257.00 amu   
15

Atomic Volume
5.00 cm3/mol   
99+
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Lithium
  

Next Element
Sodium
  

Valence Electron Potential
82.00 (-eV)   
15
Not Available   

Lattice Constant
228.58 pm   
99+
Not Available   

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
1.57   
18
Not Available   

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