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Atomic Structure of Tantalum and Actinium

Tantalum
Actinium
Atomic Structure of Actinium and Tantalum


Atomic Properties
Atomic Number
73   
99+
89   
29
Electron Configuration
[Xe] 4f14 5d3 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
73   
99+
89   
29
Number of Neutrons
108   
28
138   
16
Number of Electrons
73   
99+
89   
29
Radius of an Atom
  
  
Atomic Radius
146.00 pm   
35
195.00 pm   
7
Covalent Radius
170.00 pm   
25
Not Available   
Van der Waals Radius
200.00 pm   
28
Not Available   
Atomic Weight
180.95 amu   
38
227.00 amu   
25
Atomic Volume
10.90 cm3/mol   
99+
22.54 cm3/mol   
11
Adjacent Atomic Numbers
  
  
Previous Element
Hafnium
  
Radium
  
Next Element
Tungsten
  
Thorium
  
Valence Electron Potential
110.00 (-eV)   
7
38.60 (-eV)   
99+
Lattice Constant
330.13 pm   
99+
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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