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Shaikha Fakhroo 8B

Does a connection or relationship exist between the reactivity of a metal and when it was discovered?. Shaikha Fakhroo 8B. Periodic table. Most elements are metals. There is a key showing what each area is. . Metals that were discovered.

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Shaikha Fakhroo 8B

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  1. Does a connection or relationship exist between the reactivity of a metal and when it was discovered? Shaikha Fakhroo 8B

  2. Periodic table Most elements are metals. There is a key showing what each area is.

  3. Metals that were discovered • The first two metals that were discovered are gold and copper. Gold was used since 6000BC. Copper was used since 4200BC.

  4. Metals in common • There are 12 metals in common: • Gold • Silver • Copper • Lead • Mercury • Iron • Tin • Platinum • Antimony • Bismuth • Zinc • Arsenic

  5. The most to least reactive metals: • Potassium K • Sodium Na • Lithium Li • Calcium Ca • Magnesium Mg • Zinc Zn • Iron Fe • Copper Cu

  6. There are seven metals that are known as ‘Metals of Antiquity’. They are: • (1) Gold (ca) 6000BC • (2) Copper, (ca) 4200BC • (3) Silver, (ca) 4000BC • (4) Lead, (ca) 3500BC • (5) Tin, (ca) 1750BC • (6) Iron (ca) 1500BC • (7) Mercury, (ca) 750BC

  7. Metals discovered in 18th century • 1735 Cobalt 1751 Nickel
1774 Manganese
1781 Molybdenum
1782 Tellurium
1783 Tungsten
1789 Uranium
1789 Zirconium
1791 Titanium
1794 Yttrium
1797 Berylium
1797 Chromium


  8. Metals discovered in the 19th century • 1801 Niobium 1802 Tantalum
1803 Iridium, Palladium, Rhodium
1807 Potassium, Sodium
1808 Boron, Barium, Calcium, Magnesium, Strontium
1814 Cerium
1817 Lithium, Cadmium, Selenium
1823 Silicon
1827 Aluminum
1828 Thorium
1830 Vanadium
1839 Lanthanum
1843 Erbium, Terbium
1844 Ruthenium
1860 Cesium, Rubidium
1861 Thallium
1863 Indium
1875 Gallium
1878-1885 Holmium, Thulium, Scandium, Samarium, Gadalinium, Praseodynium, Neodynium, Dysprosium
1886 Germanium
1898 Polonium, Radium
1899 Actinium

  9. Metals discovered in the 20th century • 1901 Europium 1907 Lutetium
1917 Protactinium
1923 Hafnium
1924 Rhenium
1937 Technetium
1939 Francium
1945 Promethium
1940-61Transuranium elements.
Neptunium
Plutonium
Curium
Americum
Berkelium
Californium
Einsteinium
Fermium
Mendelevium
Nobelium
Lawrencium

  10. Conclusion • I say that there is a connection between when it was discovered and how reactive it is. The earlier the metal is discovered the less reactive it is. That is because the metals that react more are harder to discover and there were not any chemical scientists before.

  11. Bibliography • "Periodic Table." Web. 22 Oct. 2011. <http://www.ptable.com/Images/periodic%20table.png>. • "All Metals In Order From Most Reactive To Least Reactive, Why?" Ask Questions, Get Free Answers - Blurtit. Web. 22 Oct. 2011. <http://www.blurtit.com/q665644.html>. • "Metals in Science." Short History of Metals. Web. 22 Oct. 2011. <http://neon.mems.cmu.edu/cramb/Processing/history.html>. • "Copper." Picture of Copper. Web. 22 Oct. 2011. <http://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/NatCopper.jpg/250px-NatCopper.jpg>. • "Gold." Gold. Web. 22 Oct. 2011. <http://www.bullion-bars.org/wp-content/uploads/bullion-bars-gold-bars-300x225.jpg>. • "Potassium." Potassium on Periodic Table. Web. 22 Oct. 2011. <http://4.bp.blogspot.com/-78QOxP24seU/Th_9YhWXboI/AAAAAAAAAH0/CF7DCSS4pQE/s1600/potassium.png>. • "Lithium." Periodic Table Lithium. Web. 22 Oct. 2011. <http://www.irishhealth.com/clin/depression/images/lithium.jpg>.

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