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Atomic Structure of Barium and Actinium


Atomic Structure of Actinium and Barium


Atomic Properties

Atomic Number
56   
99+
89   
29

Electron Configuration
[Xe] 6s2   
[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
56   
99+
89   
29

Number of Neutrons
81   
99+
138   
16

Number of Electrons
56   
99+
89   
29

Radius of an Atom
  
  

Atomic Radius
222.00 pm   
4
195.00 pm   
7

Covalent Radius
215.00 pm   
5
Not Available   

Van der Waals Radius
268.00 pm   
6
Not Available   

Atomic Weight
137.33 amu   
99+
227.00 amu   
25

Atomic Volume
39.24 cm3/mol   
5
22.54 cm3/mol   
11

Adjacent Atomic Numbers
  
  

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Cesium
  
Radium
  

Next Element
Lanthanum
  
Thorium
  

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

Lattice Constant
502.80 pm   
15
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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