Metallurgy — Chapter Summary

Metallurgy is the science and technology

Metallurgy is the science and technology of extracting metals from ores and purifying them for use.

Minerals are compounds of metals found

Minerals are compounds of metals found in nature with impurities. Ores are minerals from which metals can be separated economically. Gangue is the unw

Metals are generally lustrous

Metals are generally lustrous, malleable, ductile, hard, sonorous, and good conductors of heat and electricity. Most are solid, but mercury and galliu

Nonmetals are usually dull

Nonmetals are usually dull, brittle, and poor conductors of heat and electricity. Bromine is a liquid nonmetal. Iodine has lustre. Diamond is the hard

Metals lose electrons easily and form

Metals lose electrons easily and form positive ions, so they are electropositive. Their reactivity can be compared by displacement reactions and by re