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Atomic Structure of Neptunium and Yttrium


Atomic Structure of Yttrium and Neptunium


Atomic Properties

Atomic Number
93   
25
39   
99+

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

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

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

Atom
  
  

Number of Protons
93   
25
39   
99+

Number of Neutrons
144   
14
50   
99+

Number of Electrons
93   
25
39   
99+

Radius of an Atom
  
  

Atomic Radius
155.00 pm   
30
180.00 pm   
14

Covalent Radius
190.00 pm   
18
190.00 pm   
18

Van der Waals Radius
221.00 pm   
22
200.00 pm   
28

Atomic Weight
237.00 amu   
22
88.91 amu   
99+

Atomic Volume
11.62 cm3/mol   
99+
19.80 cm3/mol   
21

Adjacent Atomic Numbers
  
  

Previous Element
Uranium
  
Strontium
  

Next Element
Plutonium
  
Zirconium
  

Valence Electron Potential
96.00 (-eV)   
9
48.00 (-eV)   
30

Lattice Constant
666.30 pm   
3
364.74 pm   
31

Lattice Angles
π/2, π/2, π/2   
π/2, π/2, 2 π/3   

Lattice C/A Ratio
Not Available   
1.57   
16

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