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Atomic Structure of Potassium and Beryllium

Potassium
Beryllium
Atomic Structure of Beryllium and Potassium


Atomic Properties
Atomic Number
19   
99+
4   
99+
Electron Configuration
[Ar] 4s1   
[He] 2s2   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Beryllium.jpg#100   
Atom
  
  
Number of Protons
19   
99+
4   
99+
Number of Neutrons
20   
99+
5   
99+
Number of Electrons
19   
99+
4   
99+
Radius of an Atom
  
  
Atomic Radius
227.00 pm   
3
112.00 pm   
99+
Covalent Radius
203.00 pm   
9
96.00 pm   
99+
Van der Waals Radius
275.00 pm   
5
153.00 pm   
99+
Atomic Weight
39.10 amu   
99+
9.01 amu   
99+
Atomic Volume
45.46 cm3/mol   
3
5.00 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
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Aluminium
  
Lithium
  
Next Element
Calcium
  
Sodium
  
Valence Electron Potential
10.40 (-eV)   
99+
82.00 (-eV)   
15
Lattice Constant
532.80 pm   
12
228.58 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
1.57   
18
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