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Atomic Structure of Barium and Neptunium


Atomic Structure of Neptunium and Barium


Atomic Properties

Atomic Number
56   
99+
93   
25

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

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

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

Atom
  
  

Number of Protons
56   
99+
93   
25

Number of Neutrons
81   
99+
144   
14

Number of Electrons
56   
99+
93   
25

Radius of an Atom
  
  

Atomic Radius
222.00 pm   
4
155.00 pm   
30

Covalent Radius
215.00 pm   
5
190.00 pm   
18

Van der Waals Radius
268.00 pm   
6
221.00 pm   
22

Atomic Weight
137.33 amu   
99+
237.00 amu   
22

Atomic Volume
39.24 cm3/mol   
5
11.62 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Cesium
  
Uranium
  

Next Element
Lanthanum
  
Plutonium
  

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

Lattice Constant
502.80 pm   
15
666.30 pm   
3

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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