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Atomic Structure of Potassium and Thulium

Potassium
Thulium
Atomic Structure of Thulium and Potassium


Atomic Properties
Atomic Number
19   
99+
69   
99+
Electron Configuration
[Ar] 4s1   
[Xe] 4f13 6s2   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Thulium.jpg#100   
Atom
  
  
Number of Protons
19   
99+
69   
99+
Number of Neutrons
20   
99+
100   
32
Number of Electrons
19   
99+
69   
99+
Radius of an Atom
  
  
Atomic Radius
227.00 pm   
3
176.00 pm   
18
Covalent Radius
203.00 pm   
9
160.00 pm   
30
Van der Waals Radius
275.00 pm   
5
Not Available   
Atomic Weight
39.10 amu   
99+
168.93 amu   
99+
Atomic Volume
45.46 cm3/mol   
3
18.10 cm3/mol   
28
Adjacent Atomic Numbers
  
  
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Aluminium
  
Erbium
  
Next Element
Calcium
  
Ytterbium
  
Valence Electron Potential
10.40 (-eV)   
99+
49.70 (-eV)   
28
Lattice Constant
532.80 pm   
12
353.75 pm   
40
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.57   
17
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