theprimolevifanblog:The first ever (non-periodic) chemical table of the elements, as proposed by Joh
theprimolevifanblog:The first ever (non-periodic) chemical table of the elements, as proposed by John Dalton in 1803. Jöns Jakob Berzelius and Dmitri Mendeleev took this seed of an idea and ran with it, eventually creating the modern periodic table. John Dalton (1766-1844) was an Englishman of a modest Quaker background who became one of the rock stars of 19th century science. He is responsible for a good deal of what one learns in high school chemistry: the atomic theory, the law of multiple proportions (atoms combine in particular whole-number ratios to form compounds), and Dalton’s law (the total pressure exerted by a gas mixture is the sum of the partial pressures of the component gases.) He was also the first person to identify colorblindness, which is still sometimes called Dalton’s disease or Daltonism in the UK. -- source link
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