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Atomic Structure of Americium and Cerium


Atomic Structure of Cerium and Americium


Atomic Properties

Atomic Number
95   
23
58   
99+

Electron Configuration
[Rn] 5f7 7s2   
[Xe] 4f1 5d1 6s2   

Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Double Hexagonal Close Packed (DHCP)   

Crystal Lattice
DHCP-Crystal-Structure-of-Americium.jpg#100   
DHCP-Crystal-Structure-of-Cerium.jpg#100   

Atom
  
  

Number of Protons
95   
23
58   
99+

Number of Neutrons
148   
12
82   
99+

Number of Electrons
95   
23
58   
99+

Radius of an Atom
  
  

Atomic Radius
173.00 pm   
21
181.80 pm   
12

Covalent Radius
180.00 pm   
21
204.00 pm   
8

Van der Waals Radius
244.00 pm   
10
235.00 pm   
17

Atomic Weight
243.00 amu   
20
140.12 amu   
99+

Atomic Volume
17.86 cm3/mol   
29
20.67 cm3/mol   
17

Adjacent Atomic Numbers
  
  

Previous Element
Plutonium
  
Lanthanum
  

Next Element
Curium
  

Valence Electron Potential
44.00 (-eV)   
40
41.78 (-eV)   
99+

Lattice Constant
346.81 pm   
99+
362.00 pm   
34

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

Lattice C/A Ratio
Not Available   
Not Available   

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