Hafnium

72
Hf
178.49

hafnium.jpg (28801 bytes)
Hafnium is used on Nuclear Subs.

Properties

Symbol Name Atomic Number Atomic Weight Group Number
Hf Hafnium 72 178.49 4

Description

Standard State: solid at 298 K
Color: Gray Steel

Hafnium was thought to present in some types of minerals before its discovery in 1923.  On the basis of the Bohr theory, the element Hafnium was expected to be associated with zirconium.  With the means of X-Ray Hafnium was finally identified with zirconium. Their chemistry is almost identical, however the density of zirconium is about half of Hafnium.  Hafnium has had a successful mix with iron, titanium, niobium, and other metals.