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Atomic Structure of Actinium and Francium


Atomic Structure of Francium and Actinium


Atomic Properties

Atomic Number
89   
29
87   
31

Electron Configuration
[Rn] 6d1 7s2   
[Rn] 7s1   

Crystal Structure
Face Centered Cubic (FCC)   
Body Centered Cubic (BCC)   

Crystal Lattice
FCC-Crystal-Structure-of-Actinium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
89   
29
87   
31

Number of Neutrons
138   
16
136   
17

Number of Electrons
89   
29
87   
31

Radius of an Atom
  
  

Atomic Radius
195.00 pm   
7
Not Available   

Covalent Radius
Not Available   
260.00 pm   
1

Van der Waals Radius
Not Available   
348.00 pm   
1

Atomic Weight
227.00 amu   
25
223.00 amu   
27

Atomic Volume
22.54 cm3/mol   
11
Not Available   

Adjacent Atomic Numbers
  
  

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Radium
  
Polonium
  

Next Element
Thorium
  
Radium
  

Valence Electron Potential
38.60 (-eV)   
99+
8.00 (-eV)   
99+

Lattice Constant
567.00 pm   
8
Not Available   

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

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