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Atomic Structure of Lutetium and Neptunium


Atomic Structure of Neptunium and Lutetium


Atomic Properties

Atomic Number
71   
99+
93   
25

Electron Configuration
[Xe] 6s2 4f14 5d1   
[Rn] 5f4 6d1 7s2   

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

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

Atom
  
  

Number of Protons
71   
99+
93   
25

Number of Neutrons
104   
30
144   
14

Number of Electrons
71   
99+
93   
25

Radius of an Atom
  
  

Atomic Radius
174.00 pm   
20
155.00 pm   
30

Covalent Radius
187.00 pm   
20
190.00 pm   
18

Van der Waals Radius
221.00 pm   
22
221.00 pm   
22

Atomic Weight
174.97 amu   
40
237.00 amu   
22

Atomic Volume
17.78 cm3/mol   
30
11.62 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Ytterbium
  
Uranium
  

Next Element
Hafnium
  
Plutonium
  

Valence Electron Potential
50.90 (-eV)   
26
96.00 (-eV)   
9

Lattice Constant
350.31 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
1.59   
10
Not Available   

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