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Atomic Structure of Cesium and Actinium


Atomic Structure of Actinium and Cesium


Atomic Properties

Atomic Number
55   
99+
89   
29

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

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

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

Atom
  
  

Number of Protons
55   
99+
89   
29

Number of Neutrons
78   
99+
138   
16

Number of Electrons
55   
99+
89   
29

Radius of an Atom
  
  

Atomic Radius
265.00 pm   
1
195.00 pm   
7

Covalent Radius
244.00 pm   
2
Not Available   

Van der Waals Radius
343.00 pm   
2
Not Available   

Atomic Weight
132.91 amu   
99+
227.00 amu   
25

Atomic Volume
71.07 cm3/mol   
1
22.54 cm3/mol   
11

Adjacent Atomic Numbers
  
  

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Tin
  
Radium
  

Next Element
Barium
  
Thorium
  

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

Lattice Constant
614.10 pm   
5
567.00 pm   
8

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

Lattice C/A Ratio
Not Available   
Not Available   

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