하프늄

Symbol	Hf	Name	Hafnium
Atomic Number	72	Atomic Weight	178.49
Boiling Point(°C)	5,400	Melting Point(°C)	2,150
Density	13.1	Heat Vapor	155
Heat Fusion	5.2	Electrical Conductivity	0.031
Thermal Conductivity	0.22	Specific Heat Capacity	0.035
Electron Shell	2,8,18,32,10,2	Orbital	5d2