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Atomic Structure of Tantalum and Thallium

Tantalum
Thallium
Atomic Structure of Thallium and Tantalum


Atomic Properties
Atomic Number
73   
99+
81   
35
Electron Configuration
[Xe] 4f14 5d3 6s2   
[Xe] 4f14 5d10 6s2 6p1   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
73   
99+
81   
35
Number of Neutrons
108   
28
123   
20
Number of Electrons
73   
99+
81   
35
Radius of an Atom
  
  
Atomic Radius
146.00 pm   
35
170.00 pm   
22
Covalent Radius
170.00 pm   
25
145.00 pm   
39
Van der Waals Radius
200.00 pm   
28
196.00 pm   
30
Atomic Weight
180.95 amu   
38
204.38 amu   
31
Atomic Volume
10.90 cm3/mol   
99+
17.20 cm3/mol   
31
Adjacent Atomic Numbers
  
  
Previous Element
Hafnium
  
Mercury
  
Next Element
Tungsten
  
Lead
  
Valence Electron Potential
110.00 (-eV)   
7
9.60 (-eV)   
99+
Lattice Constant
330.13 pm   
99+
345.66 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.60   
6
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