Chemistry is one of the most sophisticated branches of science, would not have been the same if Russian scientist Dmiti Ivanovich Mendeleev had not come up with the periodic table an March 6, 186. Until 1863 the word was aware of only 56 known elements. The rate of scientist progress was such that every year, a new element was being discovered it was during this time that Mendeleev came up with the idea of the periodic table. He published the periodic table in his book The relation between the properties and atomic weight of elements. He had found a definite pattern following which each element could be placed according to their atomic weight.
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he should had get noble prize for this but didn't get. sad
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by the way thanku for info
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