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Atomic Structure of Beryllium and Berkelium


Atomic Structure of Berkelium and Beryllium


Atomic Properties

Atomic Number
4   
99+
97   
21

Electron Configuration
[He] 2s2   
[Rn] 5f9 7s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Double Hexagonal Close Packed (DHCP)   

Crystal Lattice
HCP-Crystal-Structure-of-Beryllium.jpg#100   
DHCP-Crystal-Structure-of-Berkelium.jpg#100   

Atom
  
  

Number of Protons
4   
99+
97   
21

Number of Neutrons
5   
99+
150   
11

Number of Electrons
4   
99+
97   
21

Radius of an Atom
  
  

Atomic Radius
112.00 pm   
99+
170.00 pm   
22

Covalent Radius
96.00 pm   
99+
Not Available   

Van der Waals Radius
153.00 pm   
99+
Not Available   

Atomic Weight
9.01 amu   
99+
247.00 amu   
18

Atomic Volume
5.00 cm3/mol   
99+
Not Available   

Adjacent Atomic Numbers
  
  

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Sodium
  

Valence Electron Potential
82.00 (-eV)   
15
45.50 (-eV)   
36

Lattice Constant
228.58 pm   
99+
341.60 pm   
99+

Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
1.57   
18
Not Available   

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