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Atomic Structure of Neptunium and Einsteinium


Atomic Structure of Einsteinium and Neptunium


Atomic Properties

Atomic Number
93   
25
99   
19

Electron Configuration
[Rn] 5f4 6d1 7s2   
[Rn] 5f11 7s2   

Crystal Structure
Orthorhombic (ORTH)   
Face Centered Cubic (FCC)   

Crystal Lattice
ORTH-Crystal-Structure-of-Neptunium.jpg#100   
FCC-Crystal-Structure-of-Einsteinium.jpg#100   

Atom
  
  

Number of Protons
93   
25
99   
19

Number of Neutrons
144   
14
153   
9

Number of Electrons
93   
25
99   
19

Radius of an Atom
  
  

Atomic Radius
155.00 pm   
30
186.00 pm   
9

Covalent Radius
190.00 pm   
18
Not Available   

Van der Waals Radius
221.00 pm   
22
Not Available   

Atomic Weight
237.00 amu   
22
252.00 amu   
16

Atomic Volume
11.62 cm3/mol   
99+
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Uranium
  

Next Element
Plutonium
  
Fermium
  

Valence Electron Potential
96.00 (-eV)   
9
Not Available   

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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