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Atomic Structure of Lutetium and Barium

Lutetium
Barium
Atomic Structure of Barium and Lutetium


Atomic Properties
Atomic Number
71   
99+
56   
99+
Electron Configuration
[Xe] 6s2 4f14 5d1   
[Xe] 6s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Body Centered Cubic (BCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
71   
99+
56   
99+
Number of Neutrons
104   
30
81   
99+
Number of Electrons
71   
99+
56   
99+
Radius of an Atom
  
  
Atomic Radius
174.00 pm   
20
222.00 pm   
4
Covalent Radius
187.00 pm   
20
215.00 pm   
5
Van der Waals Radius
221.00 pm   
22
268.00 pm   
6
Atomic Weight
174.97 amu   
40
137.33 amu   
99+
Atomic Volume
17.78 cm3/mol   
30
39.24 cm3/mol   
5
Adjacent Atomic Numbers
  
  
Previous Element
Ytterbium
  
Cesium
  
Next Element
Hafnium
  
Lanthanum
  
Valence Electron Potential
50.90 (-eV)   
26
21.30 (-eV)   
99+
Lattice Constant
350.31 pm   
99+
502.80 pm   
15
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.59   
10
Not Available   
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