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Atomic Structure of Actinium and Cerium


Atomic Structure of Cerium and Actinium


Atomic Properties

Atomic Number
89   
29
58   
99+

Electron Configuration
[Rn] 6d1 7s2   
[Xe] 4f1 5d1 6s2   

Crystal Structure
Face Centered Cubic (FCC)   
Double Hexagonal Close Packed (DHCP)   

Crystal Lattice
FCC-Crystal-Structure-of-Actinium.jpg#100   
DHCP-Crystal-Structure-of-Cerium.jpg#100   

Atom
  
  

Number of Protons
89   
29
58   
99+

Number of Neutrons
138   
16
82   
99+

Number of Electrons
89   
29
58   
99+

Radius of an Atom
  
  

Atomic Radius
195.00 pm   
7
181.80 pm   
12

Covalent Radius
Not Available   
204.00 pm   
8

Van der Waals Radius
Not Available   
235.00 pm   
17

Atomic Weight
227.00 amu   
25
140.12 amu   
99+

Atomic Volume
22.54 cm3/mol   
11
20.67 cm3/mol   
17

Adjacent Atomic Numbers
  
  

Previous Element
Radium
  
Lanthanum
  

Next Element
Thorium
  

Valence Electron Potential
38.60 (-eV)   
99+
41.78 (-eV)   
99+

Lattice Constant
567.00 pm   
8
362.00 pm   
34

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

Lattice C/A Ratio
Not Available   
Not Available   

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