What is the symbol? Hf
What is the atomic number? 72
What is the atomic weight? 178.49
What is the melting point in Celsius? 2150
What is the boiling point in Celsius? 5400
What is the density (g/cm3)? 13.31
What year was it discovered? 1923
Who discovered the element? ” Dirk Coster
Charles de Hevesy”
What group is the element in? 4
What is the electron configuration? [Xe] 4f14 5d2 6s2
What is the ionization energy? 6.8251
What element category is it in? Transition Elements
Where is Hafnium Found?
Metallic hafnium was first prepared by van Arkel and deBoer by passing the vapor of the tetraiodide over a heated tungsten filament. Almost all hafnium metal now produced is made by reducing the tetrachloride with magnesium or with sodium.
What is Hafnium Used For?
Hafnium is used for reactor control rods. Such rods are used in nuclear submarines. Hafnium is used in gas-filled and incandescent lamps, and is an efficient getter for scavenging oxygen and nitrogen.