On this page I'll provide comprehensive data for Hafnium. I hope you profit from it.
Hafnium Overview
Name Origin
From Hafnia, the Latin name of Copenhagen.
Symbol
Hf (Hafnium)Description
Silvery, ductile metal.
Discovery
Discovered By: Dirk Coster, Georg von Hevesy
Year: 1923
Location: Denmark
Sources
Obtained from mineral zircon or baddeleyite.
Uses
Used in reactor control rods because of its ability to absorb neutrons.
State at 20 °C
Solid
Group
Group Name: Transition MetalÂ
Group in periodic table: 4b
Period in periodic table:Â 6
Atomic Number
72Learn more about the atomic number.
Atomic Mass
178,49
Learn more about the atomic mass.
Stable Isotopes
Hf174 percent abundance: .16% Hf176 percent abundance: 5.26% Hf177 percent abundance: 18.6% Hf178 percent abundance: 27.28% Hf179 percent abundance: 13.62% Hf 180 percent abundance: 35.08%
Learn more about stable isotopes.
Radioactive Isotopes
Hf172-173, Hf175, Hf181-182
Learn more about radioactive isotopes.
Atomic Structure
Crystalline Structure
Hexagonal
Learn more about crystalline structure
Shells
Electrons per energy level: 2,8,18,32,10,2
Learn more about electron shells
Electron Configuration
1s2 2s2 2p6 3s2 3p6 4 s2 3 d10 4 p6 5 s2 4 d10 5 p6 6 s2 5 d2 4 f14
Learn more about electron configuration.
Abbreviated Configuration
[Xe] 4f14 5d2 6s2
Learn more about abbreviated electron configuration.
Valence Electrons
4
Learn more about valence electrons
Atom Size
Atomic Radius
2.16 Ã…
Learn more about atomic radius.
Covalent Radius
1.44 Ã…
Learn more about covalent radius.
Ionic Radius
.83 (+4) Ã…
Learn more about ionic radius.
Molar Volume
13.6 cm³/mol
Learn more about molar volume.
Chemical Properties
Common Oxidation States
First Ionization Energy
First Ionization Potential
Second Ionization Potential
Third Ionization Potential
Physical Properties
Density
Electrical Conductivity
Thermal Conductivity
Elastic Modulus
Coefficient of Thermal Expansion
Learn more about coefficient of thermal expansion.
Heat Properties
Other heat related physical properties:
Melting Point
Boiling Point
Specific Heat
0.14 J/gK
Learn more about specific heat.
Learn more about specific heat.
Heat of Fusion
24.060 kJ/mol
Learn more about heat of fusion.
Heat of Vaporization
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Along with basic element information, it also comes with color coded info about: State (Gas, Liquid or Solid at room temperature), Groups/series details and much more...
How about an incentive to share this post? (You will help other colleagues find this blog)
Download and enjoy this complete and colored periodic table for you to edit and enjoy. It's in an editable excel format or .ods (open).
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