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Atomic Structure of Fermium and Neptunium


Atomic Structure of Neptunium and Fermium


Atomic Properties

Atomic Number
100   
18
93   
25

Electron Configuration
[Rn] 5f12 7s2   
[Rn] 5f4 6d1 7s2   

Crystal Structure
Not Known   
Orthorhombic (ORTH)   

Crystal Lattice
Unknown-Crystal-Structure-of-Fermium.jpg#100   
ORTH-Crystal-Structure-of-Neptunium.jpg#100   

Atom
  
  

Number of Protons
100   
18
93   
25

Number of Neutrons
157   
7
144   
14

Number of Electrons
100   
18
93   
25

Radius of an Atom
  
  

Atomic Radius
Not Available   
155.00 pm   
30

Covalent Radius
Not Available   
190.00 pm   
18

Van der Waals Radius
245.00 pm   
9
221.00 pm   
22

Atomic Weight
257.00 amu   
15
237.00 amu   
22

Atomic Volume
Not Available   
11.62 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Uranium
  

Next Element
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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