Hafnium


 * Element Name**: Hafnium


 * Element Symbol**: Hf


 * Atomic Mass**: 72


 * Protons**: 72


 * Electrons**: 72


 * Discovery**: This element was discovered in 1923 by van arkel and deboer


 * How It Was Named**: From a latin word for the city of Copenhagen, Hafnia


 * State Of Matter**: Vacuum tubes, iron, titanium, niobium, and other melts


 * Melting Point**: 2233


 * Boiling Point**: 4603


 * Characteristics**: The color is like a steel gray, it's not a magnetic, it really don't have a smell to it, and its not radioactive, its also not an explosive.


 * Uses Of Element**: Vacuum tubes, iron, titanium, niobium, filaments and electronics


 * Interesting Facts**:
 * Hafnium is good absorber of neutrons.
 * Hafnium carbide has the highest melting point of any known two-element.
 * Hafnium is difficult to separate from zirconium.