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Atomic Structure of Yttrium and Thulium

Yttrium
Thulium
Atomic Structure of Thulium and Yttrium


Atomic
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  
33
Number of Electrons
39  
99+
69  
99+
Radius of an Atom
  
  
Atomic Radius
180.00 pm  
16
176.00 pm  
20
Covalent Radius
190.00 pm  
18
160.00 pm  
32
Van der Waals Radius
200.00 pm  
35
227.00 pm  
26
Atomic Weight
88.91 amu  
99+
168.93 amu  
99+
Atomic Volume
19.80 cm3/mol  
33
18.10 cm3/mol  
40
Adjacent Atomic Numbers
  
  
Previous Element
Strontium
  
Erbium
  
Next Element
Zirconium
  
Ytterbium
  
Valence Electron Potential
48.00 (-eV)  
31
49.70 (-eV)  
29
Lattice Constant
364.74 pm  
34
353.75 pm  
99+
Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.57  
39
1.57  
40
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