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Chem: Metals
chapter 23 in the science book.
Question | Answer |
---|---|
Metals | chemical element that is malleable and ductile, usually solid, has a characteristic lustre, and is a good conductor of heat and electricity, e.g. copper or iron |
Non-Metals | usually have the reverse properties of metals e.g poor conductors of heat and electricity. |
Malleable | describes a metal or other substance that can be shaped or bent without breaking. |
Ductile | able to be drawn out into wire or hammered into very thin sheets. |
Sonorous | producing or possessing (transmitting?) sound. |
Alloy | a mixture of metals. |
Brass | ALLOY, copper and zinc. |
Bronze | ALLOY, copper and tin. |
Solder | ALLOY, lead and tin. |
Mild Steel | ALLOY, iron and carbon. |
Stainless Steel | ALLOY, iron, chromium and nickel. |
Alnico | ALLOY, aluminium, nickel and cobalt. |
Corrosion | an undesirable process whereby a metal changes to its oxide or some compound by combining with oxygen from air. |
Rusting | the corrosion of iron. |
Galvinising | coating iron with zinc to stop rusting. |
Reactivity | how different metals react with water. |