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Atomic Structure of Thulium and Ytterbium


Atomic Structure of Ytterbium and Thulium


Atomic Properties

Atomic Number
69   
99+
70   
99+

Electron Configuration
[Xe] 4f13 6s2   
[Xe] 4f14 6s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   

Crystal Lattice
HCP-Crystal-Structure-of-Thulium.jpg#100   
FCC-Crystal-Structure-of-Ytterbium.jpg#100   

Atom
  
  

Number of Protons
69   
99+
70   
99+

Number of Neutrons
100   
32
103   
31

Number of Electrons
69   
99+
70   
99+

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
176.00 pm   
18

Covalent Radius
160.00 pm   
30
187.00 pm   
20

Van der Waals Radius
Not Available   
242.00 pm   
12

Atomic Weight
168.93 amu   
99+
173.05 amu   
99+

Atomic Volume
18.10 cm3/mol   
28
24.79 cm3/mol   
9

Adjacent Atomic Numbers
  
  

Previous Element
Erbium
  
Thulium
  

Next Element
Ytterbium
  
Lutetium
  

Valence Electron Potential
49.70 (-eV)   
28
50.30 (-eV)   
27

Lattice Constant
353.75 pm   
40
548.47 pm   
11

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

Lattice C/A Ratio
1.57   
17
Not Available   

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