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Atomic Structure of Neptunium and Osmium

Neptunium
Osmium
Atomic Structure of Osmium and Neptunium


Atomic Properties
Atomic Number
93   
25
76   
40
Electron Configuration
[Rn] 5f4 6d1 7s2   
[Xe] 4f14 5d6 6s2   
Crystal Structure
Orthorhombic (ORTH)   
Hexagonal Close Packed (HCP)   
Crystal Lattice
ORTH-Crystal-Structure-of-Neptunium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
93   
25
76   
39
Number of Neutrons
144   
14
114   
25
Number of Electrons
93   
25
76   
39
Radius of an Atom
  
  
Atomic Radius
155.00 pm   
30
133.80 pm   
99+
Covalent Radius
190.00 pm   
18
Not Available   
Van der Waals Radius
221.00 pm   
22
216.00 pm   
24
Atomic Weight
237.00 amu   
22
190.23 amu   
35
Atomic Volume
11.62 cm3/mol   
99+
8.49 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Uranium
  
Rhenium
  
Next Element
Plutonium
  
Iridium
  
Valence Electron Potential
96.00 (-eV)   
9
91.40 (-eV)   
12
Lattice Constant
666.30 pm   
3
273.44 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
1.58   
14
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