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Atomic Structure of Magnesium and Neptunium


Atomic Structure of Neptunium and Magnesium


Atomic Properties

Atomic Number
12   
99+
93   
25

Electron Configuration
[Ne] 3s2   
[Rn] 5f4 6d1 7s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Orthorhombic (ORTH)   

Crystal Lattice
HCP-Crystal-Structure-of-Magnesium.jpg#100   
ORTH-Crystal-Structure-of-Neptunium.jpg#100   

Atom
  
  

Number of Protons
12   
99+
93   
25

Number of Neutrons
12   
99+
144   
14

Number of Electrons
12   
99+
93   
25

Radius of an Atom
  
  

Atomic Radius
160.00 pm   
27
155.00 pm   
30

Covalent Radius
141.00 pm   
99+
190.00 pm   
18

Van der Waals Radius
173.00 pm   
37
221.00 pm   
22

Atomic Weight
24.31 amu   
99+
237.00 amu   
22

Atomic Volume
13.97 cm3/mol   
37
11.62 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

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

Lattice Constant
320.94 pm   
99+
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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