납

Symbol	Pb	Name	Lead
Atomic Number	82	Atomic Weight	207.19
Boiling Point(°C)	1,740	Melting Point(°C)	327.4
Density	11.4	Heat Vapor	42.2
Heat Fusion	1.22	Electrical Conductivity	0.046
Thermal Conductivity	0.083	Specific Heat Capacity	0.031
Electron Shell	2,8,18,32,18,4	Orbital	6p2