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Atomic Structure of Cerium and Neptunium


Atomic Structure of Neptunium and Cerium


Atomic Properties

Atomic Number
58   
99+
93   
25

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

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

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

Atom
  
  

Number of Protons
58   
99+
93   
25

Number of Neutrons
82   
99+
144   
14

Number of Electrons
58   
99+
93   
25

Radius of an Atom
  
  

Atomic Radius
181.80 pm   
12
155.00 pm   
30

Covalent Radius
204.00 pm   
8
190.00 pm   
18

Van der Waals Radius
235.00 pm   
17
221.00 pm   
22

Atomic Weight
140.12 amu   
99+
237.00 amu   
22

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

Adjacent Atomic Numbers
  
  

Previous Element
Lanthanum
  
Uranium
  

Next Element
Plutonium
  

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

Lattice Constant
362.00 pm   
34
666.30 pm   
3

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

Lattice C/A Ratio
Not Available   
Not Available   

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