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Atomic Structure of Potassium and Thallium

Potassium
Thallium
Atomic Structure of Thallium and Potassium


Atomic Properties
Atomic Number
19   
99+
81   
35
Electron Configuration
[Ar] 4s1   
[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
19   
99+
81   
35
Number of Neutrons
20   
99+
123   
20
Number of Electrons
19   
99+
81   
35
Radius of an Atom
  
  
Atomic Radius
227.00 pm   
3
170.00 pm   
22
Covalent Radius
203.00 pm   
9
145.00 pm   
39
Van der Waals Radius
275.00 pm   
5
196.00 pm   
30
Atomic Weight
39.10 amu   
99+
204.38 amu   
31
Atomic Volume
45.46 cm3/mol   
3
17.20 cm3/mol   
31
Adjacent Atomic Numbers
  
  
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Calcium
  
Lead
  
Valence Electron Potential
10.40 (-eV)   
99+
9.60 (-eV)   
99+
Lattice Constant
532.80 pm   
12
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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