Metals By: Ali Al Naema 8c

Copper Copper was discovered in 9000 BC by the middle east, copper is a chemical metal with the symbol Cu and the atomic number 29, copper is ductile and it has very high thermal and electrical conductivity, it is soft and malleable it also has a pinkish or peachy color. Copper is used for wiring in the houses, for extracting the copper you need to treat by a process called smelting process

Zinc Zinc was discovered in 1746 by the chemist Andreas Marggraf, it is a metallic chemical element, it has the symbol Zn and the atomic number 30 it has a grayish-silver color. Zinc is used for Die castings by the automobile industry and one of its important uses is Galvanizing metals, Zinc is generally extracted through the mining of sulfidic ore deposits.

Aluminum Aluminum was discovered by Hans Christian Oersted in 1825, it is silvery-white, ductile metallic element and some uses of aluminum are Motors for cars, Frames on bikes, Brake handles, Tools Conductors for electricity, Solid fuel stabilizers and for cooking pots

Iron Iron was believed to have been first discovered by the Egyptians in 4000 BC. The widespread use of this element lead to the period in World History called the Iron Age. Common uses of Iron is Production of steel and the best known alloy of iron, in order to obtain elemental iron, the impurities must be removed by chemical reduction, Industrially, iron is extracted from its ores,

Tin Tin dates back to antiquity. Used in bronze implements as early as 3,500 BC. First believed to have been mined in South- East England. Uses of Tin are Coating for steel cans, Tin ceilings, signs, tiles, tin soldiers, whistles, containers and tin roofs, Tin is extracted from its ore by heating it with carbon

Lithium Lithium was discovered by Johann Arfvedson in 1817 when he was analyzing minerals from the island of Uto in Sweden. The element was isolated by W.T. Brande and Sir Humphrey Davy. Some uses of it are Lithium batteries, Lithium orotate, carbonate, polymer & bromide, Lithium ion battery, Lithium mostly is mined from pegmatites containing spodumene, LiAl(SiO3)2, which is a lithium- bearing pyroxene. Refining spodumene provides lithium.
 

Timeline Copper 9000 BC Iron 4000 BC Tin 3,500 BC Aluminum 1925 Lithium 1817 Zinc 1746

Relationship Overall it shows is that the discovered long time ago a metal is less reactive, as I showed in the timeline I had them placed in the order from the first to the last which if you see is that if it is discovered early it is less reactive and if it is discovered late it is more reactive because if they discovered it from before it less reactive because it was easy to extract.

Bibliography http://en.wikipedia.org/wiki/Copper#Production http://www.facts-about.org.uk/science-element-zinc.htm http://www.cafepress.com/+copper-element+framed-prints http://en.wikipedia.org/wiki/Zinc http://wiki.answers.com/Q/What_Does_The_Element_Zinc_Look_Like http://answers.ask.com/Science/Chemistry/how_is_zinc_extracted http://images8.cpcache.com/product/264863808v3_240x240_Front.jpg http://dictionary.babylon.com/aluminium/ http://www.facts-about.org.uk/science-element-aluminum.htm http://www.facts-about.org.uk/science-element-iron.htm http://www.facts-about.org.uk/science-element-tin.htm http://www.facts-about.org.uk/science-element-lithium.htm