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Atomic Structure of Lutetium and Actinium

Lutetium
Actinium
Atomic Structure of Actinium and Lutetium


Atomic Properties
Atomic Number
71   
99+
89   
29
Electron Configuration
[Xe] 6s2 4f14 5d1   
[Rn] 6d1 7s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
FCC-Crystal-Structure-of-Actinium.jpg#100   
Atom
  
  
Number of Protons
71   
99+
89   
29
Number of Neutrons
104   
30
138   
16
Number of Electrons
71   
99+
89   
29
Radius of an Atom
  
  
Atomic Radius
174.00 pm   
20
195.00 pm   
7
Covalent Radius
187.00 pm   
20
Not Available   
Van der Waals Radius
221.00 pm   
22
Not Available   
Atomic Weight
174.97 amu   
40
227.00 amu   
25
Atomic Volume
17.78 cm3/mol   
30
22.54 cm3/mol   
11
Adjacent Atomic Numbers
  
  
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Ytterbium
  
Radium
  
Next Element
Hafnium
  
Thorium
  
Valence Electron Potential
50.90 (-eV)   
26
38.60 (-eV)   
99+
Lattice Constant
350.31 pm   
99+
567.00 pm   
8
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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