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Atomic Structure of Neptunium and Beryllium


Atomic Structure of Beryllium and Neptunium


Atomic Properties

Atomic Number
93   
25
4   
99+

Electron Configuration
[Rn] 5f4 6d1 7s2   
[He] 2s2   

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

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

Atom
  
  

Number of Protons
93   
25
4   
99+

Number of Neutrons
144   
14
5   
99+

Number of Electrons
93   
25
4   
99+

Radius of an Atom
  
  

Atomic Radius
155.00 pm   
30
112.00 pm   
99+

Covalent Radius
190.00 pm   
18
96.00 pm   
99+

Van der Waals Radius
221.00 pm   
22
153.00 pm   
99+

Atomic Weight
237.00 amu   
22
9.01 amu   
99+

Atomic Volume
11.62 cm3/mol   
99+
5.00 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

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Uranium
  
Lithium
  

Next Element
Plutonium
  
Sodium
  

Valence Electron Potential
96.00 (-eV)   
9
82.00 (-eV)   
15

Lattice Constant
666.30 pm   
3
228.58 pm   
99+

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

Lattice C/A Ratio
Not Available   
1.57   
18

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