3. (a) What are metals? Name five metals?
(b) What are non metals? Name five non metals.
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Seventeen elements are generally classified as nonmetals: most are gases (hydrogen, helium, nitrogen, oxygen, fluorine, neon, chlorine, argon, krypton, xenon and radon); one is a liquid (bromine); and a few are solids (carbon, phosphorus, sulfur, selenium, and iodine).
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Explanation:
(a) Metals are the elements that conduct heat and electricity, and are malleable and ductile. Example: Iron, aluminium, copper, gold and silver
b)Seventeen elements are generally classified as nonmetals: most are gases (hydrogen, helium, nitrogen, oxygen, fluorine, neon, chlorine, argon, krypton, xenon and radon); one is a liquid (bromine); and a few are solids (carbon, phosphorus, sulfur, selenium, and iodine).
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