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Atomic Structure of Potassium and Hafnium

Potassium
Hafnium
Atomic Structure of Hafnium and Potassium


Atomic Properties
Atomic Number
19   
99+
72   
99+
Electron Configuration
[Ar] 4s1   
[Xe] 4f14 5d2 6s2   
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+
72   
99+
Number of Neutrons
20   
99+
106   
29
Number of Electrons
19   
99+
72   
99+
Radius of an Atom
  
  
Atomic Radius
227.00 pm   
3
159.00 pm   
28
Covalent Radius
203.00 pm   
9
175.00 pm   
23
Van der Waals Radius
275.00 pm   
5
200.00 pm   
28
Atomic Weight
39.10 amu   
99+
178.49 amu   
39
Atomic Volume
45.46 cm3/mol   
3
13.60 cm3/mol   
38
Adjacent Atomic Numbers
  
  
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Aluminium
  
Lutetium
  
Next Element
Calcium
  
Tantalum
  
Valence Electron Potential
10.40 (-eV)   
99+
81.00 (-eV)   
16
Lattice Constant
532.80 pm   
12
319.64 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.58   
12
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