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Atomic Structure of Scandium and Thorium


Atomic Structure of Thorium and Scandium


Atomic Properties

Atomic Number
21   
99+
90   
28

Electron Configuration
[Ar] 3d1 4s2   
[Rn] 6d2 7s2   

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

Crystal Lattice
HCP-Crystal-Structure-of-Scandium.jpg#100   
FCC-Crystal-Structure-of-Thorium.jpg#100   

Atom
  
  

Number of Protons
21   
99+
90   
28

Number of Neutrons
24   
99+
142   
15

Number of Electrons
21   
99+
90   
28

Radius of an Atom
  
  

Atomic Radius
162.00 pm   
26
179.80 pm   
15

Covalent Radius
170.00 pm   
25
206.00 pm   
7

Van der Waals Radius
211.00 pm   
25
237.00 pm   
15

Atomic Weight
44.96 amu   
99+
232.04 amu   
23

Atomic Volume
15.00 cm3/mol   
34
19.90 cm3/mol   
20

Adjacent Atomic Numbers
  
  

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Calcium
  
Actinium
  

Next Element
Titanium
  

Valence Electron Potential
58.00 (-eV)   
24
59.30 (-eV)   
23

Lattice Constant
330.90 pm   
99+
508.42 pm   
14

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

Lattice C/A Ratio
1.59   
7
Not Available   

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