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Science

Science . By: Nour Ahmed. Some Facts. The first metals that were discovered were copper and gold. . Elements and Metals. Majority of the elements in the periodic table are metals. 86 out of 122 elements on the periodic table are metals. More Facts.

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Science

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  1. Science By: Nour Ahmed

  2. Some Facts • The first metals that were discovered were copper and gold.

  3. Elements and Metals • Majority of the elements in the periodic table are metals. 86 out of 122 elements on the periodic table are metals.

  4. More Facts All metals are ordered in their reactivity order, for example the most reactive metal will go on the top, and the least reactive will go on the bottom.

  5. Properties of Metals • Metals have different properties allowing them to have their own reasons of use. For example, aluminum is made to build air craft structures because it is light so it will stop it from falling flat but at the same time is strong enough to keep it high.

  6. History of Metals • In the old times the color of metals was very important because it was what differed them from each other since they didn’t have the science to know the difference, so it was the only way to recognize them. By the end of the 17th century the only metals that were known were gold, tin, silver, platinum, copper, lead, iron, mercury, antimony, bismuth, arsenic, and zinc.

  7. 18th Century • By the 18th century the metals that were discovered were cobalt, nickel, manganese, molybdenum, tellurium, tungsten, uranium, zirconium, titanium, yttrium, beryllium, and chromium.

  8. Does A connection or a relationship exist between the re-activity of a metal and when it was discovered? • Yes because when a metal is discovered the reactivity, the oxygen reacts on the metal, for example iron, it becomes iron oxide, the more it’s exposed to fresh air the more it changes, and this is all because of our modern science and man’s genius.

  9. Bibliography • http://www.slideshare.net/Isha1597/relation-between-reactivity-of-a-metal-and-the-date-it-was-discovered • http://1.bp.blogspot.com/-EfNR309GmXY/Tn26R1jEAjI/AAAAAAAAA0E/IWr8hDZQtIw/s1600/0428_copper12.jpg • http://upload.wikimedia.org/wikipedia/commons/a/a8/Empty_tin_can2009-01-19.jpg • http://images.tradekool.com/171554100/Iron-Oxide-Red.jpg • http://hitmasty.com/data/media/167/6a010536a2eb4c970c0154323d2629970c-800wi.jpg • http://images.tutorvista.com/content/metals-non-metals/metals-reactivity-series.jpeg

  10. Thanks for Watching

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