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Atomic Structure of Neptunium and Francium

Neptunium
Francium
Atomic Structure of Francium and Neptunium


Atomic Properties
Atomic Number
93   
25
87   
31
Electron Configuration
[Rn] 5f4 6d1 7s2   
[Rn] 7s1   
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
87   
31
Number of Neutrons
144   
14
136   
17
Number of Electrons
93   
25
87   
31
Radius of an Atom
  
  
Atomic Radius
155.00 pm   
30
Not Available   
Covalent Radius
190.00 pm   
18
260.00 pm   
1
Van der Waals Radius
221.00 pm   
22
348.00 pm   
1
Atomic Weight
237.00 amu   
22
223.00 amu   
27
Atomic Volume
11.62 cm3/mol   
99+
Not Available   
Adjacent Atomic Numbers
  
  
Previous Element
Uranium
  
Polonium
  
Next Element
Plutonium
  
Radium
  
Valence Electron Potential
96.00 (-eV)   
9
8.00 (-eV)   
99+
Lattice Constant
666.30 pm   
3
Not Available   
Lattice Angles
π/2, π/2, π/2   
NA   
Lattice C/A Ratio
Not Available   
Not Available   
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