Home
Compare Metals


Atomic Structure of Neptunium and Fermium


Atomic Structure of Fermium and Neptunium


Atomic Properties

Atomic Number
93   
25
100   
18

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

Crystal Structure
Orthorhombic (ORTH)   
Not Known   

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

Atom
  
  

Number of Protons
93   
25
100   
18

Number of Neutrons
144   
14
157   
7

Number of Electrons
93   
25
100   
18

Radius of an Atom
  
  

Atomic Radius
155.00 pm   
30
Not Available   

Covalent Radius
190.00 pm   
18
Not Available   

Van der Waals Radius
221.00 pm   
22
245.00 pm   
9

Atomic Weight
237.00 amu   
22
257.00 amu   
15

Atomic Volume
11.62 cm3/mol   
99+
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Uranium
  

Next Element
Plutonium
  

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   

Mechanical >>
<< Chemical

Compare Actinide Series

Actinide Metals

Actinide Metals

» More Actinide Metals

Compare Actinide Series

» More Compare Actinide Series