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Atomic Structure of Fermium and Yttrium

Fermium
Yttrium
Atomic Structure of Yttrium and Fermium


Atomic Properties
Atomic Number
100   
18
39   
99+
Electron Configuration
[Rn] 5f12 7s2   
[Kr] 4d1 5s2   
Crystal Structure
Not Known   
Hexagonal Close Packed (HCP)   
Crystal Lattice
Unknown-Crystal-Structure-of-Fermium.jpg#100   
HCP-Crystal-Structure-of-Yttrium.jpg#100   
Atom
  
  
Number of Protons
100   
18
39   
99+
Number of Neutrons
157   
7
50   
99+
Number of Electrons
100   
18
39   
99+
Radius of an Atom
  
  
Atomic Radius
Not Available   
180.00 pm   
14
Covalent Radius
Not Available   
190.00 pm   
18
Van der Waals Radius
245.00 pm   
9
200.00 pm   
28
Atomic Weight
257.00 amu   
15
88.91 amu   
99+
Atomic Volume
Not Available   
19.80 cm3/mol   
21
Adjacent Atomic Numbers
  
  
Previous Element
Einsteinium
  
Strontium
  
Next Element
Mendelevium
  
Zirconium
  
Valence Electron Potential
Not Available   
48.00 (-eV)   
30
Lattice Constant
Not Available   
364.74 pm   
31
Lattice Angles
NA   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.57   
16
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