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Atomic Structure of Tantalum and Scandium


Atomic Structure of Scandium and Tantalum


Atomic Properties

Atomic Number
73   
99+
21   
99+

Electron Configuration
[Xe] 4f14 5d3 6s2   
[Ar] 3d1 4s2   

Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   

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

Atom
  
  

Number of Protons
73   
99+
21   
99+

Number of Neutrons
108   
28
24   
99+

Number of Electrons
73   
99+
21   
99+

Radius of an Atom
  
  

Atomic Radius
146.00 pm   
35
162.00 pm   
26

Covalent Radius
170.00 pm   
25
170.00 pm   
25

Van der Waals Radius
200.00 pm   
28
211.00 pm   
25

Atomic Weight
180.95 amu   
38
44.96 amu   
99+

Atomic Volume
10.90 cm3/mol   
99+
15.00 cm3/mol   
34

Adjacent Atomic Numbers
  
  

Previous Element
Hafnium
  
Calcium
  

Next Element
Tungsten
  
Titanium
  

Valence Electron Potential
110.00 (-eV)   
7
58.00 (-eV)   
24

Lattice Constant
330.13 pm   
99+
330.90 pm   
99+

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

Lattice C/A Ratio
Not Available   
1.59   
7

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