Kellee Cannon 1st Period

Symbol: Hf Atomic #: 72 atomic mass: 178.49 Protons/electrons: 72 neutrons: 106

  Transition Metal    Origin of Name: named by its Danish discoverer for the latin word Copenhagen (Hafnia)    Discovered: George de HevesyMelting Point: 2230 Boiling Point: 4600  normal phase: solid Cost $120 for 100 grams classification: metal 


Density is 13.31 good conductor of heat and electricity used in computer chips