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Atomic Structure of Actinium and Gadolinium


Atomic Structure of Gadolinium and Actinium


Atomic Properties

Atomic Number
89   
29
64   
99+

Electron Configuration
[Rn] 6d1 7s2   
[Xe] 4f7 5d1 6s2   

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

Crystal Lattice
FCC-Crystal-Structure-of-Actinium.jpg#100   
HCP-Crystal-Structure-of-Gadolinium.jpg#100   

Atom
  
  

Number of Protons
89   
29
64   
99+

Number of Neutrons
138   
16
93   
37

Number of Electrons
89   
29
64   
99+

Radius of an Atom
  
  

Atomic Radius
195.00 pm   
7
180.00 pm   
14

Covalent Radius
Not Available   
196.00 pm   
14

Van der Waals Radius
Not Available   
237.00 pm   
15

Atomic Weight
227.00 amu   
25
47.87 amu   
99+

Atomic Volume
22.54 cm3/mol   
11
19.90 cm3/mol   
20

Adjacent Atomic Numbers
  
  

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Thorium
  
Terbium
  

Valence Electron Potential
38.60 (-eV)   
99+
46.10 (-eV)   
34

Lattice Constant
567.00 pm   
8
363.60 pm   
32

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

Lattice C/A Ratio
Not Available   
1.59   
9

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