Metallic Elements
A metal (from Greek "μέταλλον" – métallon, "mine, quarry, metal") is an element, compound, or alloy that is a good conductor of both electricity and heat. Metals are usually malleable, ductile and shiny. The meaning of the term "metal" differs for various communities (for example, astronomers call for convenience metals everything but hydrogen and helium, see Metallicity). Many elements and compounds that are not normally classified as metals become metallic under high pressures (see nonmetal#Metallic allotropes.)
Read more about Metallic Elements: Structure and Bonding, Alloys, Extraction, Recycling of Metals, Metallurgy, Applications, Trade, History
Famous quotes containing the words metallic and/or elements:
“Every civilization when it loses its inner vision and its cleaner energy, falls into a new sort of sordidness, more vast and more stupendous than the old savage sort. An Augean stable of metallic filth.”
—D.H. (David Herbert)
“The two elements the traveler first captures in the big city are extrahuman architecture and furious rhythm. Geometry and anguish. At first glance, the rhythm may be confused with gaiety, but when you look more closely at the mechanism of social life and the painful slavery of both men and machines, you see that it is nothing but a kind of typical, empty anguish that makes even crime and gangs forgivable means of escape.”
—Federico García Lorca (1898–1936)