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Atomic Structure of Neptunium and Cesium


Atomic Structure of Cesium and Neptunium


Atomic Properties

Atomic Number
93   
25
55   
99+

Electron Configuration
[Rn] 5f4 6d1 7s2   
[Xe] 6s1   

Crystal Structure
Orthorhombic (ORTH)   
Body Centered Cubic (BCC)   

Crystal Lattice
ORTH-Crystal-Structure-of-Neptunium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
93   
25
55   
99+

Number of Neutrons
144   
14
78   
99+

Number of Electrons
93   
25
55   
99+

Radius of an Atom
  
  

Atomic Radius
155.00 pm   
30
265.00 pm   
1

Covalent Radius
190.00 pm   
18
244.00 pm   
2

Van der Waals Radius
221.00 pm   
22
343.00 pm   
2

Atomic Weight
237.00 amu   
22
132.91 amu   
99+

Atomic Volume
11.62 cm3/mol   
99+
71.07 cm3/mol   
1

Adjacent Atomic Numbers
  
  

Previous Element
Uranium
  
Tin
  

Next Element
Plutonium
  
Barium
  

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

Lattice Constant
666.30 pm   
3
614.10 pm   
5

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

Lattice C/A Ratio
Not Available   
Not Available   

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