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Atomic Structure of Neptunium and Cerium


Atomic Structure of Cerium and Neptunium


Atomic Properties

Atomic Number
93   
25
58   
99+

Electron Configuration
[Rn] 5f4 6d1 7s2   
[Xe] 4f1 5d1 6s2   

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

Crystal Lattice
ORTH-Crystal-Structure-of-Neptunium.jpg#100   
DHCP-Crystal-Structure-of-Cerium.jpg#100   

Atom
  
  

Number of Protons
93   
25
58   
99+

Number of Neutrons
144   
14
82   
99+

Number of Electrons
93   
25
58   
99+

Radius of an Atom
  
  

Atomic Radius
155.00 pm   
30
181.80 pm   
12

Covalent Radius
190.00 pm   
18
204.00 pm   
8

Van der Waals Radius
221.00 pm   
22
235.00 pm   
17

Atomic Weight
237.00 amu   
22
140.12 amu   
99+

Atomic Volume
11.62 cm3/mol   
99+
20.67 cm3/mol   
17

Adjacent Atomic Numbers
  
  

Previous Element
Uranium
  
Lanthanum
  

Next Element
Plutonium
  

Valence Electron Potential
96.00 (-eV)   
9
41.78 (-eV)   
99+

Lattice Constant
666.30 pm   
3
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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