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Atomic Structure of Radium and Neptunium

Radium
Neptunium
Atomic Structure of Neptunium and Radium


Atomic Properties
Atomic Number
88   
30
93   
25
Electron Configuration
[Rn] 7s2   
[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
88   
30
93   
25
Number of Neutrons
138   
16
144   
14
Number of Electrons
88   
30
93   
25
Radius of an Atom
  
  
Atomic Radius
Not Available   
155.00 pm   
30
Covalent Radius
221.00 pm   
3
190.00 pm   
18
Van der Waals Radius
283.00 pm   
4
221.00 pm   
22
Atomic Weight
226.00 amu   
26
237.00 amu   
22
Atomic Volume
45.20 cm3/mol   
4
11.62 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Francium
  
Uranium
  
Next Element
Actinium
  
Plutonium
  
Valence Electron Potential
20.10 (-eV)   
99+
96.00 (-eV)   
9
Lattice Constant
514.80 pm   
13
666.30 pm   
3
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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