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:
“The voice of America has no undertones or overtones in it. It repeats its optimistic catchwords in a tireless monologue that has the slightly metallic sound of a gramophone.”
—Vance Palmer (1885–1959)
“psychologist
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