Hafnium is a corrosion-resistant metal that absorbs neutrons and forms heat-resistant compounds and advanced transistor dielectrics.
Atomic number
72
Category
Transition metal
Period
6
Group
4
State
Solid
Fun facts about Hafnium
It occurs with zirconium and is difficult to separate from it.
Hafnium control rods absorb neutrons in some reactors.
Hafnium oxide is used as a high-permittivity gate material in microelectronics.
Common uses of Hafnium
Nuclear control rods
Microelectronic gate dielectrics
High-temperature alloys
Where Hafnium sits in the periodic table
Hafnium is classified as a transition metal in period 6 and group 4 of the periodic table. Under the conditions represented in this reference, its state is solid.
Quick chemistry revision
For quick revision, pair the symbol Hf with atomic number 72 and the listed atomic mass 178.49. The summary, facts, and uses above keep those element properties together in one reference.