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Atomic Structure of Hafnium and Strontium

Hafnium
Strontium
Atomic Structure of Strontium and Hafnium


Atomic Properties
Atomic Number
72   
99+
38   
99+
Electron Configuration
[Xe] 4f14 5d2 6s2   
[Kr] 5s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
FCC-Crystal-Structure-of-Strontium.jpg#100   
Atom
  
  
Number of Protons
72   
99+
38   
99+
Number of Neutrons
106   
29
50   
99+
Number of Electrons
72   
99+
38   
99+
Radius of an Atom
  
  
Atomic Radius
159.00 pm   
28
215.00 pm   
5
Covalent Radius
175.00 pm   
23
195.00 pm   
15
Van der Waals Radius
200.00 pm   
28
249.00 pm   
7
Atomic Weight
178.49 amu   
39
87.62 amu   
99+
Atomic Volume
13.60 cm3/mol   
38
33.70 cm3/mol   
6
Adjacent Atomic Numbers
  
  
Previous Element
Lutetium
  
Rubidium
  
Next Element
Tantalum
  
Yttrium
  
Valence Electron Potential
81.00 (-eV)   
16
25.70 (-eV)   
99+
Lattice Constant
319.64 pm   
99+
608.49 pm   
6
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.58   
12
Not Available   
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