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Atomic Structure of Neptunium and Potassium

Neptunium
Potassium
Atomic Structure of Potassium and Neptunium


Atomic Properties
Atomic Number
93   
25
19   
99+
Electron Configuration
[Rn] 5f4 6d1 7s2   
[Ar] 4s1   
Crystal Structure
Orthorhombic (ORTH)   
Body Centered Cubic (BCC)   
Crystal Lattice
ORTH-Crystal-Structure-of-Neptunium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
93   
25
19   
99+
Number of Neutrons
144   
14
20   
99+
Number of Electrons
93   
25
19   
99+
Radius of an Atom
  
  
Atomic Radius
155.00 pm   
30
227.00 pm   
3
Covalent Radius
190.00 pm   
18
203.00 pm   
9
Van der Waals Radius
221.00 pm   
22
275.00 pm   
5
Atomic Weight
237.00 amu   
22
39.10 amu   
99+
Atomic Volume
11.62 cm3/mol   
99+
45.46 cm3/mol   
3
Adjacent Atomic Numbers
  
  
Previous Element
Uranium
  
Aluminium
  
Next Element
Plutonium
  
Calcium
  
Valence Electron Potential
96.00 (-eV)   
9
10.40 (-eV)   
99+
Lattice Constant
666.30 pm   
3
532.80 pm   
12
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
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