Ramsay's suggestion was accepted, but it created another interesting new problem for chemists. That group would be placed to the right of Group 17 (VIIA) in the periodic table. Ramsay proposed adding a whole new group to the table. Ramsay suggested that the periodic table might have to be extended. Where should this element go to the periodic table? At that time, the periodic table ended with Group 17 (VIIA) at the right. Argon was the first noble gas to be discovered by the scientist. The discovery of argon raised a problem for chemists. The name argon is derived from the Greek word Argos, "the lazy one." The name is based on argon's disability to react with anything. Both scientists decided to make their announcement together. He made his discovery around the same time Ramsay did. Meanwhile, Rayleigh was doing the same work at almost the same time. He was convinced that he had discovered a new element. He obtained a series of lines that did not belong to any other element. Ramsay examined the spectrum of the unidentified gas. The spectrum (plural: spectra) of an element that consists of a series of colored lines and is different for every element. Spectroscopy is the process in which the light produced is analyzed by heating an element. But Ramsay had an advantage over Cavendish: he was able to use spectroscopy, which did not exist in Cavendish's time. When Ramsay repeated Cavendish's experiments in the year 1890s, he, too, found a tiny amount of unidentified gas in the air. He guessed correctly that another element was in the air, but he was unable to identify what it was. When Cavendish tried to remove oxygen and nitrogen from the air, he found that a very small amount of gas remained. However, English scientist Henry Cavendish (1731-1810) had predicted the existence of argon 200 years earlier before the discovery of argon. Argon is also used in creating "neon" lamps and in lasers.Īrgon was discovered in the year 1894. An inert blanket of gas prevents any chemicals in the operation from reacting with oxygen and other few substances present in the air. The portion of air that converts back to a gas at -185.86☌ (-302.55☏) is argon.Īrgon is used to produce an inert blanket for certain industrial operations. As the air warms, various elements change from a liquid back to a gas. Fractional distillation is the method of letting liquid air slowly warm up. Rayleigh and Ramsay found argon by the fractional distillation of liquid air. It was the first kind of noble gases to be isolated. In fact, no compound of argon has never been produced.Īn English chemist by name John William Strutt, most popularly known as Lord Rayleigh (1842-1919), chemist William Ramsay (1852-1916) discovered Argon in 1894. The noble gases are also called inert gases because Group 18 (VIII A) elements react with so little other elements. The noble gases are the 7 elements in Group 18 (VIII A) of the periodic table (The periodic table is a chart that shows how the chemical elements are related to each other).
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