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Atomic Structure of Einsteinium and Beryllium


Atomic Structure of Beryllium and Einsteinium


Atomic Properties

Atomic Number
99   
19
4   
99+

Electron Configuration
[Rn] 5f11 7s2   
[He] 2s2   

Crystal Structure
Face Centered Cubic (FCC)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
FCC-Crystal-Structure-of-Einsteinium.jpg#100   
HCP-Crystal-Structure-of-Beryllium.jpg#100   

Atom
  
  

Number of Protons
99   
19
4   
99+

Number of Neutrons
153   
9
5   
99+

Number of Electrons
99   
19
4   
99+

Radius of an Atom
  
  

Atomic Radius
186.00 pm   
9
112.00 pm   
99+

Covalent Radius
Not Available   
96.00 pm   
99+

Van der Waals Radius
Not Available   
153.00 pm   
99+

Atomic Weight
252.00 amu   
16
9.01 amu   
99+

Atomic Volume
Not Available   
5.00 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Lithium
  

Next Element
Fermium
  
Sodium
  

Valence Electron Potential
Not Available   
82.00 (-eV)   
15

Lattice Constant
Not Available   
228.58 pm   
99+

Lattice Angles
NA   
π/2, π/2, π/2   

Lattice C/A Ratio
Not Available   
1.57   
18

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