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Atomic Structure of Yttrium and Hafnium


Atomic Structure of Hafnium and Yttrium


Atomic Properties

Atomic Number
39   
99+
72   
99+

Electron Configuration
[Kr] 4d1 5s2   
[Xe] 4f14 5d2 6s2   

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

Crystal Lattice
HCP-Crystal-Structure-of-Yttrium.jpg#100   
BCC-Crystal-Structure-.jpg#100   

Atom
  
  

Number of Protons
39   
99+
72   
99+

Number of Neutrons
50   
99+
106   
29

Number of Electrons
39   
99+
72   
99+

Radius of an Atom
  
  

Atomic Radius
180.00 pm   
14
159.00 pm   
28

Covalent Radius
190.00 pm   
18
175.00 pm   
23

Van der Waals Radius
200.00 pm   
28
200.00 pm   
28

Atomic Weight
88.91 amu   
99+
178.49 amu   
39

Atomic Volume
19.80 cm3/mol   
21
13.60 cm3/mol   
38

Adjacent Atomic Numbers
  
  

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Strontium
Strontium
  
Lutetium
Lutetium
  

Next Element
Zirconium
Zirconium
  
Tantalum
Tantalum
  

Valence Electron Potential
48.00 (-eV)   
30
81.00 (-eV)   
16

Lattice Constant
364.74 pm   
31
319.64 pm   
99+

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

Lattice C/A Ratio
1.57   
16
1.58   
12

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