The density of hafnium is 13,31 g/cm3.
Mohs hardness of hafnium: 5,5
Metals: tantalum, rhenium, wolfram, osmium Nonmetals: diamond, graphite Compounds: hafnium carbide, hafnium boride, hafnium nitride, tantalum hafnium carbide, etc.
If there is a reaction, it it would produce hydrogen gas and a corresponding hafnium salt. For example if you use hydrochloric acid, you would get hafnium chloride.
Not known but very probable not flammable.
The thermal conductivity of hafnium is 23 W/m.K at room temperature.
Though both Hafnium and Zirconium are in the periodic table's fourth group, Hafnium is generally more associated with Zirconium. In terms of electron shells, Thorium has an extra shell of 18 electrons much like Hafnium, so there probably is some relation in behaviour. In other words, yes Hafnium may be mistaken for Thorium, but mistaking it for Zirconium is much more likely.
Hafnium is a metal, steel grey.
Hafnium is malleable.
Hafnium is a natural chemical element; hafnium hasn't minerals but it is associated with zirconium (unrefined zirconium contain approx. 2 % hafnium).
Pure hafnium doesn't exist in the nature; hafnium form many compounds.
Fine powders of hafnium are pyrophoric.
There are 37 isotopes of Hafnium.
Hafnium is a metal.
Hafnium is found in tandem with zirconium deposits. It is separated from the zirconium during refinement as hafnium chloride. It is then reduced with magnesium to produce pure hafnium.
Hafnium is a metal, steel grey appearance.
Hafnium is a single element and therefore nonpolar.
The density of hafnium is 13,31 g/cm3.
Hafnium is separated from zirconium minerals.