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Atomic Structure of Actinium and Beryllium


Atomic Structure of Beryllium and Actinium


Atomic Properties

Atomic Number
89   
29
4   
99+

Electron Configuration
[Rn] 6d1 7s2   
[He] 2s2   

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

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

Atom
  
  

Number of Protons
89   
29
4   
99+

Number of Neutrons
138   
16
5   
99+

Number of Electrons
89   
29
4   
99+

Radius of an Atom
  
  

Atomic Radius
195.00 pm   
7
112.00 pm   
99+

Covalent Radius
Not Available   
96.00 pm   
99+

Van der Waals Radius
Not Available   
153.00 pm   
99+

Atomic Weight
227.00 amu   
25
9.01 amu   
99+

Atomic Volume
22.54 cm3/mol   
11
5.00 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

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Radium
  
Lithium
  

Next Element
Thorium
  
Sodium
  

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

Lattice Constant
567.00 pm   
8
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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