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Atomic Structure of Tantalum and Lutetium

Tantalum
Lutetium
Atomic Structure of Lutetium and Tantalum


Atomic Properties
Atomic Number
73   
99+
71   
99+
Electron Configuration
[Xe] 4f14 5d3 6s2   
[Xe] 6s2 4f14 5d1   
Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
73   
99+
71   
99+
Number of Neutrons
108   
28
104   
30
Number of Electrons
73   
99+
71   
99+
Radius of an Atom
  
  
Atomic Radius
146.00 pm   
35
174.00 pm   
20
Covalent Radius
170.00 pm   
25
187.00 pm   
20
Van der Waals Radius
200.00 pm   
28
221.00 pm   
22
Atomic Weight
180.95 amu   
38
174.97 amu   
40
Atomic Volume
10.90 cm3/mol   
99+
17.78 cm3/mol   
30
Adjacent Atomic Numbers
  
  
Previous Element
Hafnium
  
Ytterbium
  
Next Element
Tungsten
  
Hafnium
  
Valence Electron Potential
110.00 (-eV)   
7
50.90 (-eV)   
26
Lattice Constant
330.13 pm   
99+
350.31 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   
10
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