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Atomic Structure of Thulium and Strontium


Atomic Structure of Strontium and Thulium


Atomic Properties

Atomic Number
69   
99+
38   
99+

Electron Configuration
[Xe] 4f13 6s2   
[Kr] 5s2   

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

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

Atom
  
  

Number of Protons
69   
99+
38   
99+

Number of Neutrons
100   
32
50   
99+

Number of Electrons
69   
99+
38   
99+

Radius of an Atom
  
  

Atomic Radius
176.00 pm   
18
215.00 pm   
5

Covalent Radius
160.00 pm   
30
195.00 pm   
15

Van der Waals Radius
Not Available   
249.00 pm   
7

Atomic Weight
168.93 amu   
99+
87.62 amu   
99+

Atomic Volume
18.10 cm3/mol   
28
33.70 cm3/mol   
6

Adjacent Atomic Numbers
  
  

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Ytterbium
  
Yttrium
  

Valence Electron Potential
49.70 (-eV)   
28
25.70 (-eV)   
99+

Lattice Constant
353.75 pm   
40
608.49 pm   
6

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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