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Atomic Structure of Yttrium and Thulium

Yttrium
Thulium
Atomic Structure of Thulium and Yttrium


Atomic Properties
Atomic Number
39   
99+
69   
99+
Electron Configuration
[Kr] 4d1 5s2   
[Xe] 4f13 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
HCP-Crystal-Structure-of-Yttrium.jpg#100   
HCP-Crystal-Structure-of-Thulium.jpg#100   
Atom
  
  
Number of Protons
39   
99+
69   
99+
Number of Neutrons
50   
99+
100   
32
Number of Electrons
39   
99+
69   
99+
Radius of an Atom
  
  
Atomic Radius
180.00 pm   
14
176.00 pm   
18
Covalent Radius
190.00 pm   
18
160.00 pm   
30
Van der Waals Radius
200.00 pm   
28
Not Available   
Atomic Weight
88.91 amu   
99+
168.93 amu   
99+
Atomic Volume
19.80 cm3/mol   
21
18.10 cm3/mol   
28
Adjacent Atomic Numbers
  
  
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Strontium
  
Erbium
  
Next Element
Zirconium
  
Ytterbium
  
Valence Electron Potential
48.00 (-eV)   
30
49.70 (-eV)   
28
Lattice Constant
364.74 pm   
31
353.75 pm   
40
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
1.57   
16
1.57   
17
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