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Atomic Structure of Fermium and Samarium


Atomic Structure of Samarium and Fermium


Atomic Properties

Atomic Number
100   
18
62   
99+

Electron Configuration
[Rn] 5f12 7s2   
[Xe] 4f6 6s2   

Crystal Structure
Not Known   
Rhombohedral (RHO)   

Crystal Lattice
Unknown-Crystal-Structure-of-Fermium.jpg#100   
RHO-Crystal-Structure-of-Samarium.jpg#100   

Atom
  
  

Number of Protons
100   
18
62   
99+

Number of Neutrons
157   
7
88   
39

Number of Electrons
100   
18
62   
99+

Radius of an Atom
  
  

Atomic Radius
Not Available   
180.00 pm   
14

Covalent Radius
Not Available   
198.00 pm   
13

Van der Waals Radius
245.00 pm   
9
229.00 pm   
20

Atomic Weight
257.00 amu   
15
150.36 amu   
99+

Atomic Volume
Not Available   
19.95 cm3/mol   
19

Adjacent Atomic Numbers
  
  

Previous Element
Promethium
  

Next Element
Europium
  

Valence Electron Potential
Not Available   
44.80 (-eV)   
37

Lattice Constant
Not Available   
362.10 pm   
33

Lattice Angles
NA   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
Not Available   
Not Available   

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