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Atomic Structure of Yttrium and Fermium

Yttrium
Fermium
Atomic Structure of Fermium and Yttrium


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