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Atomic Structure of Actinium and Lutetium


Atomic Structure of Lutetium and Actinium


Atomic Properties

Atomic Number
89   
29
71   
99+

Electron Configuration
[Rn] 6d1 7s2   
[Xe] 6s2 4f14 5d1   

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

Crystal Lattice
FCC-Crystal-Structure-of-Actinium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
89   
29
71   
99+

Number of Neutrons
138   
16
104   
30

Number of Electrons
89   
29
71   
99+

Radius of an Atom
  
  

Atomic Radius
195.00 pm   
7
174.00 pm   
20

Covalent Radius
Not Available   
187.00 pm   
20

Van der Waals Radius
Not Available   
221.00 pm   
22

Atomic Weight
227.00 amu   
25
174.97 amu   
40

Atomic Volume
22.54 cm3/mol   
11
17.78 cm3/mol   
30

Adjacent Atomic Numbers
  
  

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Ytterbium
  

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Thorium
  
Hafnium
  

Valence Electron Potential
38.60 (-eV)   
99+
50.90 (-eV)   
26

Lattice Constant
567.00 pm   
8
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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