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Atomic Structure of Osmium and Thulium


Atomic Structure of Thulium and Osmium


Atomic Properties

Atomic Number
76   
40
69   
99+

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

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

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

Atom
  
  

Number of Protons
76   
39
69   
99+

Number of Neutrons
114   
25
100   
32

Number of Electrons
76   
39
69   
99+

Radius of an Atom
  
  

Atomic Radius
133.80 pm   
99+
176.00 pm   
18

Covalent Radius
Not Available   
160.00 pm   
30

Van der Waals Radius
216.00 pm   
24
Not Available   

Atomic Weight
190.23 amu   
35
168.93 amu   
99+

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

Adjacent Atomic Numbers
  
  

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Rhenium
  
Erbium
  

Next Element
Iridium
  
Ytterbium
  

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

Lattice Constant
273.44 pm   
99+
353.75 pm   
40

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

Lattice C/A Ratio
1.58   
14
1.57   
17

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