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Atomic Structure of Thulium and Osmium


Atomic Structure of Osmium and Thulium


Atomic Properties

Atomic Number
69   
99+
76   
40

Electron Configuration
[Xe] 4f13 6s2   
[Xe] 4f14 5d6 6s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
HCP-Crystal-Structure-of-Thulium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
69   
99+
76   
39

Number of Neutrons
100   
32
114   
25

Number of Electrons
69   
99+
76   
39

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
133.80 pm   
99+

Covalent Radius
160.00 pm   
30
Not Available   

Van der Waals Radius
Not Available   
216.00 pm   
24

Atomic Weight
168.93 amu   
99+
190.23 amu   
35

Atomic Volume
18.10 cm3/mol   
28
8.49 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

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Erbium
  
Rhenium
  

Next Element
Ytterbium
  
Iridium
  

Valence Electron Potential
49.70 (-eV)   
28
91.40 (-eV)   
12

Lattice Constant
353.75 pm   
40
273.44 pm   
99+

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

Lattice C/A Ratio
1.57   
17
1.58   
14

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