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Atomic Structure of Einsteinium and Neptunium


Atomic Structure of Neptunium and Einsteinium


Atomic Properties

Atomic Number
99   
19
93   
25

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

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

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

Atom
  
  

Number of Protons
99   
19
93   
25

Number of Neutrons
153   
9
144   
14

Number of Electrons
99   
19
93   
25

Radius of an Atom
  
  

Atomic Radius
186.00 pm   
9
155.00 pm   
30

Covalent Radius
Not Available   
190.00 pm   
18

Van der Waals Radius
Not Available   
221.00 pm   
22

Atomic Weight
252.00 amu   
16
237.00 amu   
22

Atomic Volume
Not Available   
11.62 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Uranium
  

Next Element
Fermium
  
Plutonium
  

Valence Electron Potential
Not Available   
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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