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Atomic Structure of Radium and Beryllium


Atomic Structure of Beryllium and Radium


Atomic Properties

Atomic Number
88   
30
4   
99+

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

Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Beryllium.jpg#100   

Atom
  
  

Number of Protons
88   
30
4   
99+

Number of Neutrons
138   
16
5   
99+

Number of Electrons
88   
30
4   
99+

Radius of an Atom
  
  

Atomic Radius
Not Available   
112.00 pm   
99+

Covalent Radius
221.00 pm   
3
96.00 pm   
99+

Van der Waals Radius
283.00 pm   
4
153.00 pm   
99+

Atomic Weight
226.00 amu   
26
9.01 amu   
99+

Atomic Volume
45.20 cm3/mol   
4
5.00 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Francium
  
Lithium
  

Next Element
Actinium
  
Sodium
  

Valence Electron Potential
20.10 (-eV)   
99+
82.00 (-eV)   
15

Lattice Constant
514.80 pm   
13
228.58 pm   
99+

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

Lattice C/A Ratio
Not Available   
1.57   
18

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