Metals - Some facts

Fact to remember	Name of the metal
1st Metal used by man	Iron
Metal most abundant in earth’s crust	Aluminium
Metal which forms amalgam with other elements	Mercury
Metal used in a fuse wire and also in solder	Lead-tin alloy
Metal used in the filament of a bulb	Tungsten
Metal which pollutes the air of cities having large number of vehicles	Lead (reason for using unleaded petrol)
Metal used in the filaments of electric heaters	Nichrome
Metal used as radiation shield	Lead
Metal into which Uranium turns when it loses all its radioactivity	Lead
Metal used for making boats because it does not corrode by seawater	Titanium

Important Alloys

Alloy	Combination of
Duralumin	Aluminium and Copper
Brass	Copper and Zinc
Bronze	Copper and Tin
Invar	Iron and Nickel
Stainless steel	Iron, Chromium and Nickel
Gunmetal	Copper, Tin and Zinc
Solder	Lead and Tin
Electrum	Gold and Silver

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Ores of Metals

Metal	Ore
Aluminium	Bauxite
Beryllium	Beryl
Chromium	Chromite
Cobalt	Cobaltite
Copper	Bornite, Chalcocite
Gold	Quartz
Iron	Magnetite
Lead	Galena
Manganese	Pyrolusite
Mercury	Cinnabar
Nickel	Pentlandite
Tin	Casseterite
Tungsten	Wolframite, Scheelite
Silver	Argentite
Uranium	Uraninite
Zinc	Sphalerite