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Atomic Structure of Thallium and Protactinium

Thallium
Protactinium
Atomic Structure of Protactinium and Thallium


Atomic Properties
Atomic Number
81   
35
91   
27
Electron Configuration
[Xe] 4f14 5d10 6s2 6p1   
[Rn] 5f2 6d1 7s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Tetragonal (TETR)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
TETR-Crystal-Structure-of-Protactinium.jpg#100   
Atom
  
  
Number of Protons
81   
35
91   
27
Number of Neutrons
123   
20
122   
21
Number of Electrons
81   
35
91   
27
Radius of an Atom
  
  
Atomic Radius
170.00 pm   
22
163.00 pm   
25
Covalent Radius
145.00 pm   
39
200.00 pm   
11
Van der Waals Radius
196.00 pm   
30
243.00 pm   
11
Atomic Weight
204.38 amu   
31
231.04 amu   
24
Atomic Volume
17.20 cm3/mol   
31
15.00 cm3/mol   
34
Adjacent Atomic Numbers
  
  
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Mercury
  
Thorium
  
Next Element
Lead
  
Uranium
  
Valence Electron Potential
9.60 (-eV)   
99+
92.00 (-eV)   
11
Lattice Constant
345.66 pm   
99+
392.50 pm   
23
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.60   
6
Not Available   
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