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Atomic Structure of Potassium and Rubidium

Potassium
Rubidium
Atomic Structure of Rubidium and Potassium


Atomic
Atomic Number
19  
99+
37  
99+
Electron Configuration
[Ar] 4s1  
[Kr] 5s1  
Crystal Structure
Body Centered Cubic (BCC)  
Body Centered Cubic (BCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
19  
99+
37  
99+
Number of Neutrons
20  
99+
48  
99+
Number of Electrons
19  
99+
37  
99+
Radius of an Atom
  
  
Atomic Radius
227.00 pm  
4
248.00 pm  
3
Covalent Radius
203.00 pm  
9
220.00 pm  
4
Van der Waals Radius
275.00 pm  
7
303.00 pm  
4
Atomic Weight
39.10 amu  
99+
85.47 amu  
99+
Atomic Volume
45.46 cm3/mol  
4
55.90 cm3/mol  
3
Adjacent Atomic Numbers
  
  
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Aluminium
  
Gallium
  
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Calcium
  
Strontium
  
Valence Electron Potential
10.40 (-eV)  
99+
9.47 (-eV)  
99+
Lattice Constant
532.80 pm  
13
558.50 pm  
11
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.69  
10
1.59  
28
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