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the philospher aritstotle believed in empedocles four element model despite the more recent "atomic" model.
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another greek, democritus, suggested that matter was made of tiny particles that could not be broken down further .
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a greeek scholar named empedocles proposed that matter was composed of four elements: earth,air,fire,and water.
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do metals grow like plants ripening into gold? many alchemists( combination of philosopher,mystic, magician, and chemist) believed that they did for centuries they performed numerous eperiments attempting to make gold form cheap metals such as iron and lead.
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an english scientist, robert boyle, did not believe in the four-element model
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joseph priestley was the first person to isolate oxygen scientifically,but he did not know that oxygen is an element.
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however, dalton's atomic model cannot explain why, on a dry winter day, you get a spark when you touch a metal doorknob.
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by this time it was generally accepted that matter was made of elements: the two models had come togeter.
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J.J. thomson revised the atomic model further, to explain his discovery of very light megative particles, called electrons.
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ernest rutherford, working at mcgill university in montreal,designed an experimeny to test thomson's and nagaoka's models.
