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Atomic Structure of Strontium and Thulium

Strontium
Thulium
Atomic Structure of Thulium and Strontium


Atomic Properties
Atomic Number
38   
99+
69   
99+
Electron Configuration
[Kr] 5s2   
[Xe] 4f13 6s2   
Crystal Structure
Face Centered Cubic (FCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
FCC-Crystal-Structure-of-Strontium.jpg#100   
HCP-Crystal-Structure-of-Thulium.jpg#100   
Atom
  
  
Number of Protons
38   
99+
69   
99+
Number of Neutrons
50   
99+
100   
32
Number of Electrons
38   
99+
69   
99+
Radius of an Atom
  
  
Atomic Radius
215.00 pm   
5
176.00 pm   
18
Covalent Radius
195.00 pm   
15
160.00 pm   
30
Van der Waals Radius
249.00 pm   
7
Not Available   
Atomic Weight
87.62 amu   
99+
168.93 amu   
99+
Atomic Volume
33.70 cm3/mol   
6
18.10 cm3/mol   
28
Adjacent Atomic Numbers
  
  
Previous Element
Rubidium
  
Erbium
  
Next Element
Yttrium
  
Ytterbium
  
Valence Electron Potential
25.70 (-eV)   
99+
49.70 (-eV)   
28
Lattice Constant
608.49 pm   
6
353.75 pm   
40
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.57   
17
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