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Atomic Structure of Francium and Neptunium

Francium
Neptunium
Atomic Structure of Neptunium and Francium


Atomic Properties
Atomic Number
87   
31
93   
25
Electron Configuration
[Rn] 7s1   
[Rn] 5f4 6d1 7s2   
Crystal Structure
Body Centered Cubic (BCC)   
Orthorhombic (ORTH)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
ORTH-Crystal-Structure-of-Neptunium.jpg#100   
Atom
  
  
Number of Protons
87   
31
93   
25
Number of Neutrons
136   
17
144   
14
Number of Electrons
87   
31
93   
25
Radius of an Atom
  
  
Atomic Radius
Not Available   
155.00 pm   
30
Covalent Radius
260.00 pm   
1
190.00 pm   
18
Van der Waals Radius
348.00 pm   
1
221.00 pm   
22
Atomic Weight
223.00 amu   
27
237.00 amu   
22
Atomic Volume
Not Available   
11.62 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Polonium
  
Uranium
  
Next Element
Radium
  
Plutonium
  
Valence Electron Potential
8.00 (-eV)   
99+
96.00 (-eV)   
9
Lattice Constant
Not Available   
666.30 pm   
3
Lattice Angles
NA   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
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