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  • Article - 23 Jul 2001
    Uranium is a heavy, silver-white metal resembling nickel. It is malleable, ductile, slightly paramagnetic and pyrophoric when finely divided. Its main uses are as a nuclear fuel, radioactive isotope...
  • Article - 23 Jul 2001
    Ancient Chinese and Hindus were familiar with mercury (Hg). The metal was also found in Egyptian tombs of 1500 BC. Mercury rarely occurs as such in nature.
  • Article - 23 Jul 2001
    Metallic zinc was produced in India by reducing calamine with organic substances like wool, in the 13th century A.D. Marggraf rediscovered zinc in 1746 and showed that metallic zinc could also be...
  • Article - 23 Jul 2001
    Platinum (Pt) was discovered by Ulloa in 1735 and Wood in 1741. Platinum occurs as such naturally, together with negligible amounts of palladium, iridium, rhodium, osmium, and ruthenium.
  • Article - 21 Jul 2001
    Silver metal in its pure state has a brilliant white metallic lustre and it is a little harder than gold and is very ductile and malleable. It has 3 commercial types and applications in jewellery,...
  • Article - 20 Jul 2001
    Silicon is synthesized commercially by heating carbon and silica in an electric furnace, using carbon electrodes.
  • Article - 20 Jul 2001
    Gold is most widely known as a precious metal due to its high lustre and chemical inertness. It is also used for coinage, ornaments, jewellery, gilding, textile industry, radiation control,...
  • Article - 20 Jul 2001
    Copper is tough and ductile, but is valuable due its ability to conduct electricity. While it is suited to many applications most centre around its excellent electrical conductivity (e.g. busbars and...
  • Article - 20 Jul 2001
    Cobalt is a brittle, hard metal white in appearance resembling nickel but with a bluish tinge instead of the yellow of nickel. It imparts hardness to steels and alloys. Radioactive cobalt 60 has many...
  • Article - 20 Jul 2001
    In its pure state chromium is a steel-silvery grey with bluish tinge lustre. It is an extremely hard metal that takes a high polish. As a coating it has no capilliary action to oil and water. Its main...

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