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Atomic Structure of Scandium and Thulium


Atomic Structure of Thulium and Scandium


Atomic Properties

Atomic Number
21   
99+
69   
99+

Electron Configuration
[Ar] 3d1 4s2   
[Xe] 4f13 6s2   

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

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

Atom
  
  

Number of Protons
21   
99+
69   
99+

Number of Neutrons
24   
99+
100   
32

Number of Electrons
21   
99+
69   
99+

Radius of an Atom
  
  

Atomic Radius
162.00 pm   
26
176.00 pm   
18

Covalent Radius
170.00 pm   
25
160.00 pm   
30

Van der Waals Radius
211.00 pm   
25
Not Available   

Atomic Weight
44.96 amu   
99+
168.93 amu   
99+

Atomic Volume
15.00 cm3/mol   
34
18.10 cm3/mol   
28

Adjacent Atomic Numbers
  
  

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Calcium
  
Erbium
  

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Titanium
  
Ytterbium
  

Valence Electron Potential
58.00 (-eV)   
24
49.70 (-eV)   
28

Lattice Constant
330.90 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
1.59   
7
1.57   
17

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