R.E.G.G.E.T.O.N.

@Erszebet, para nada A metal (from Greek "μέταλλον" – métallon, "mine, quarry, metal"[1][2]) is an element, compound, or alloy that is a good conductor of both electricity and heat. Metals are usually shiny, malleable and ductile.[3] The meaning of the term "metal" differs for various communities (for example, astronomers call for convenience metals everything but hydrogen and helium,[4] see Metallicity). Many elements and compounds that are not normally classified as metals become metallic under high pressures (see Nonmetal: Metallic allotropes.)