Elements

1(a).The five most great fixingss in Earths crust be atomic number 8, Silicon, Aluminium, illuminate out and calcium: (b) 1. 2. 3. 4. 5. dim material adjure ore oxygen46.1% non alloy Silicon28.2% tractor trailer metallic element Aluminum8.23% metal atomic number 265.63% metal Calcium4.15% metal http://education.jlab.org/burnish/abund_ele.html 2. The elements in the centre of the periodic table, amidst groups 2 and 3, be called the transmutation metals. Most of the comm save utilise metals ar there, including press, copper, property and gold. The dim materials for extracting cast- entreat out and their function in the surgery Contains atomic number 26 oxide single-valued function a compound that contains iron Iron is classify as a transition element because it is both elastic and ductile, and it hind end conduct heat and electricity. Iron, cobalt and nickel argon the only elements in the transition metals family cognise to produce a magnetized field. 1. 2. 3. 4. They are unremarkably superior melting heighten metals. They curb several oxidation states. They usually form obscure compounds. They are often paramagnetic. http://www.bbc.co.uk/schools/gcsebitesize/science/edexcel_pre_2011/patterns/transitionmetalsrev1.shtm 3(a). Iron is extracted from iron ore in a huge container called a savage furnace.

Iron ores such as haematite contain iron oxide. The type O must(prenominal) be removed from the iron oxide to leave the iron behind. Reactions in which oxygen is removed are called reduction reactions. The process of the bloodline of iron is carried out by the following travel: constriction of ore Calcination or Roasting of ore decrease of ore Concentration of ore: In this metallurgic operation, the ore is grueling by removing impurities ilk soil and so on The process involves the crushing and airstream of ore. Calcination or Roasting of ore: The concentrated ore is now heated in the presence of air. The process of micturate is performed to remove moisture, CO 2 , impurities of sulphur, arsenic. Ferrous oxide is also oxidize to...If you want to get a full essay, order it on our website: Orderessay

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